{"id":717,"date":"2025-01-20T07:35:39","date_gmt":"2025-01-20T07:35:39","guid":{"rendered":"https:\/\/bmsicl.in\/?p=717"},"modified":"2025-01-20T07:35:39","modified_gmt":"2025-01-20T07:35:39","slug":"ncert-solutions-for-class-12-physics-chapter-4-moving-charges-and-magnetism","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/library\/ncert-solutions-for-class-12-physics-chapter-4-moving-charges-and-magnetism\/","title":{"rendered":"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935"},"content":{"rendered":"<div class=\"entry-content\">\n<p>\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c\u0947\u091c \u090f\u0902\u0921 \u092e\u0948\u0917\u094d\u0928\u0947\u091f\u093f\u091c\u094d\u092e \u092a\u093e\u0930\u094d\u091f \u0911\u092b\u00a0\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938\u00a0\u0964\u00a0\u092f\u0939\u093e\u0902 \u0939\u092e\u0928\u0947 \u0926\u093f\u092f\u093e \u0939\u0948\u0964\u00a0\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935<\/p>\n<h2 style=\"text-align: center\">NCERT Solutions For Class 12 Physics Chapter 4 Moving Charges and Magnetism<\/h2>\n<div class=\"code-block code-block-1\">\n<div id=\"bsa-zone_1600446116715-9_123456\"><\/div>\n<\/div>\n<table>\n<tbody>\n<tr>\n<td><strong>\u0924\u0916\u093c\u094d\u0924\u093e<\/strong><\/td>\n<td>\u0938\u0940\u092c\u0940\u090f\u0938\u0908<\/td>\n<\/tr>\n<tr>\n<td><strong>\u092a\u093e\u0920\u092f\u092a\u0941\u0938\u094d\u0924\u0915<\/strong><\/td>\n<td>NCERT<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0915\u0915\u094d\u0937\u093e<\/strong><\/td>\n<td>\u0915\u0915\u094d\u0937\u093e 12<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0935\u093f\u0937\u092f<\/strong><\/td>\n<td>\u092d\u094c\u0924\u093f\u0915 \u0935\u093f\u091c\u094d\u091e\u093e\u0928<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0905\u0927\u094d\u092f\u093e\u092f<\/strong><\/td>\n<td>\u0905\u0927\u094d\u092f\u093e\u092f 4<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0905\u0927\u094d\u092f\u093e\u092f \u0915\u093e \u0928\u093e\u092e<\/strong><\/td>\n<td>\u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0939\u0932 \u0915\u093f\u090f \u0917\u090f \u092a\u094d\u0930\u0936\u094d\u0928\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/strong><\/td>\n<td>28<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0936\u094d\u0930\u0947\u0923\u0940<\/strong><\/td>\n<td>NCERT Solutions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 \u0967.<\/strong><br \/>\n\u0924\u093e\u0930 \u0915\u0940 \u090f\u0915 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u092e\u0947\u0902 \u0967\u0966\u0966 \u092b\u0947\u0930\u0947 \u0939\u0948\u0902, \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u096e.\u0966 \u0938\u0947\u092e\u0940 \u0939\u0948, \u0966.\u096a\u0966 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u092e\u0947\u0902 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 B \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52325\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-1.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 1\" width=\"299\" height=\"139\" \/><br \/>\n<strong>\u092a\u094d\u0930\u0936\u094d\u0928 2.<\/strong><br \/>\n\u090f\u0915 \u0932\u0902\u092c\u0947 \u0938\u0940\u0927\u0947 \u0924\u093e\u0930 \u092e\u0947\u0902 35 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0924\u093e\u0930 \u0938\u0947 20 \u0938\u0947\u092e\u0940 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u0927\u093e\u0930\u093f\u0924 B \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52336\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-2.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 2\" width=\"245\" height=\"82\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 3.<\/strong><br \/>\n\u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0924\u0932 \u092e\u0947\u0902 \u090f\u0915 \u0932\u0902\u092c\u0947 \u0938\u0940\u0927\u0947 \u0924\u093e\u0930 \u092e\u0947\u0902 \u0909\u0924\u094d\u0924\u0930 \u0938\u0947 \u0926\u0915\u094d\u0937\u093f\u0923 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 50 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964\u00a0\u0924\u093e\u0930 \u092a\u0930 2.5 \u092e\u0940\u091f\u0930 \u092a\u0942\u0930\u094d\u0935 \u092e\u0947\u0902 \u090f\u0915 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 R \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0914\u0930 \u0926\u093f\u0936\u093e \u0926\u0947\u0902\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<br \/>\n<\/strong><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52355\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-3.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 3\" width=\"254\" height=\"226\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 4.<\/strong><br \/>\n\u090f\u0915 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0913\u0935\u0930\u0939\u0947\u0921 \u092a\u093e\u0935\u0930 \u0932\u093e\u0907\u0928 \u092a\u0942\u0930\u094d\u0935 \u0938\u0947 \u092a\u0936\u094d\u091a\u093f\u092e \u0926\u093f\u0936\u093e \u092e\u0947\u0902 90A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0915\u0930\u0924\u0940 \u0939\u0948\u0964\u00a0\u0930\u0947\u0916\u093e \u0938\u0947 1.5 \u092e\u0940\u091f\u0930 \u0928\u0940\u091a\u0947 \u0927\u093e\u0930\u093e \u0915\u0947 \u0915\u093e\u0930\u0923 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0914\u0930 \u0926\u093f\u0936\u093e \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52371\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-4.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 4\" width=\"214\" height=\"60\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52420\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-4.1.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 4.1\" width=\"215\" height=\"122\" \/><br \/>\n<\/strong><\/p>\n<div class=\"code-block code-block-2\"><\/div>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 5.<\/strong><br \/>\n0.15 T \u0915\u0947 \u090f\u0915\u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u0926\u093f\u0936\u093e \u0938\u0947 30\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 8 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0947 \u0924\u093e\u0930 \u092a\u0930 \u092a\u094d\u0930\u0924\u093f \u0907\u0915\u093e\u0908 \u0932\u0902\u092c\u093e\u0908 \u092e\u0947\u0902 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u092c\u0932 \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52373\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-6.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 6\" width=\"311\" height=\"161\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 6.<\/strong><br \/>\n\u090f\u0915 3.0 \u0938\u0947\u092e\u0940 \u0915\u093e \u0924\u093e\u0930 \u091c\u093f\u0938\u092e\u0947\u0902 10A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948, \u0905\u092a\u0928\u0940 \u0927\u0941\u0930\u0940 \u0915\u0947 \u0932\u0902\u092c\u0935\u0924 \u090f\u0915 \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u0947 \u0905\u0902\u0926\u0930 \u0930\u0916\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964\u00a0\u0938\u094b\u0932\u0947\u0928\u094b\u0907\u0921 \u0915\u0947 \u0905\u0902\u0926\u0930 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 0.27 T \u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948\u0964 \u0924\u093e\u0930 \u092a\u0930 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u092c\u0932 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\nI = 10 A, B = 0.27 T<br \/>\n1 = 3cm = 0.3m<br \/>\n\u0914\u0930 \u03b8 = 90\u00b0<br \/>\nF = BI 1 sin \u03b8<br \/>\n= 0.27\u00d710 \u00d7 0.03 \u00d7 sin90\u00b0<br \/>\n= 0.27\u00d710 x 0.03 x 1<br \/>\n= 8.1 \u00d7 10<sup>&#8211; 2<\/sup>\u090f\u0928.<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 7.<\/strong><br \/>\n\u090f\u0915 \u0939\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 8*0A \u0914\u0930 5*0A \u0915\u0940 \u0927\u093e\u0930\u093e\u090f\u0902 \u0932\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u0926\u094b \u0932\u0902\u092c\u0947 \u0914\u0930 \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u0938\u0940\u0927\u0947 \u0924\u093e\u0930\u094b\u0902 A \u0914\u0930 B \u0915\u094b 4-0 \u0938\u0947\u092e\u0940 \u0915\u0940 \u0926\u0942\u0930\u0940 \u0938\u0947 \u0905\u0932\u0917 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u0924\u093e\u0930 A \u0915\u0947 10 \u0938\u0947\u092e\u0940 \u0916\u0902\u0921 \u092a\u0930 \u092c\u0932 \u0915\u093e \u0905\u0928\u0941\u092e\u093e\u0928 \u0932\u0917\u093e\u090f\u0902\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52374\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-7.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 7\" width=\"296\" height=\"120\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 8.<\/strong><br \/>\n80 \u0938\u0947\u092e\u0940 \u0932\u0902\u092c\u0947 \u090f\u0915 \u0928\u093f\u0915\u091f \u0918\u093e\u0935 \u0935\u093e\u0932\u0947 \u0938\u094b\u0932\u0928\u0949\u0907\u0921 \u092e\u0947\u0902 400 \u0918\u0941\u092e\u093e\u0935\u094b\u0902 \u0915\u0940 \u0935\u093e\u0907\u0902\u0921\u093f\u0902\u0917 \u0915\u0940 5 \u092a\u0930\u0924\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964\u00a0\u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u093e \u0935\u094d\u092f\u093e\u0938 1.8 \u0938\u0947\u092e\u0940 \u0939\u0948\u0964\u00a0\u092f\u0926\u093f \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0927\u093e\u0930\u093e 8.0 A \u0939\u0948, \u0924\u094b \u0907\u0938\u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0915\u0947 \u092a\u093e\u0938 \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u0947 \u0905\u0902\u0926\u0930 B \u0915\u0947 \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u093e \u0905\u0928\u0941\u092e\u093e\u0928 \u0932\u0917\u093e\u090f\u0902\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52375\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-8.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 8\" width=\"251\" height=\"138\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 9.<\/strong><br \/>\n10 \u0938\u0947\u092e\u0940 \u092d\u0941\u091c\u093e \u0935\u093e\u0932\u0940 \u090f\u0915 \u0935\u0930\u094d\u0917\u093e\u0915\u093e\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u092e\u0947\u0902 20 \u092b\u0947\u0930\u0947 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u0909\u0938\u092e\u0947\u0902 12 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u094b \u0932\u0902\u092c\u0935\u0924 \u0930\u0942\u092a \u0938\u0947 \u0932\u091f\u0915\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u0947 \u0924\u0932 \u092a\u0930 \u0905\u092d\u093f\u0932\u092e\u094d\u092c \u090f\u0915 \u0938\u092e\u093e\u0928 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u0940 \u0926\u093f\u0936\u093e \u0915\u0947 \u0938\u093e\u0925 30\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u093e\u0924\u093e \u0939\u0948\u0964 \u092a\u0930\u093f\u092e\u093e\u0923 0.80 T \u0915\u093e \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u0964 \u0915\u0941\u0902\u0921\u0932 \u0926\u094d\u0935\u093e\u0930\u093e \u0905\u0928\u0941\u092d\u0935 \u0915\u093f\u090f \u0917\u090f \u091f\u094b\u0915\u093c \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n\u090f\u0928 = 20, \u090f = 100 x 10<sup>-4<\/sup>\u092e\u0940\u091f\u0930<sup>2<\/sup><br \/>\n\u0906\u0908 = 12 \u090f<br \/>\n\u092c\u0940 = 0.8 \u091f\u0940<br \/>\n\u03b8 = 30 \u0921\u093f\u0917\u094d\u0930\u0940<br \/>\n\u091f\u0949\u0930\u094d\u0915, \u03c4 = \u090f\u0928\u0906\u0908 (<span id=\"MathJax-Element-1-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-1\" class=\"math\"><span id=\"MathJax-Span-2\" class=\"mrow\"><span id=\"MathJax-Span-3\" class=\"texatom\"><span id=\"MathJax-Span-4\" class=\"mrow\"><span id=\"MathJax-Span-5\" class=\"munderover\"><span id=\"MathJax-Span-6\" class=\"mi\">\u090f<\/span><span id=\"MathJax-Span-7\" class=\"mo\">\u092e\u0948\u0902<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u00a0\u090f\u0915\u094d\u0938\u00a0<span id=\"MathJax-Element-2-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-8\" class=\"math\"><span id=\"MathJax-Span-9\" class=\"mrow\"><span id=\"MathJax-Span-10\" class=\"texatom\"><span id=\"MathJax-Span-11\" class=\"mrow\"><span id=\"MathJax-Span-12\" class=\"munderover\"><span id=\"MathJax-Span-13\" class=\"mi\">\u092c\u0940<\/span><span id=\"MathJax-Span-14\" class=\"mo\">\u092e\u0948\u0902<\/span><\/span><\/span><\/span><\/span><\/span><\/span>)<br \/>\n= 20 x 12 x 100 x 10\u00a0<sup>-4<\/sup>\u00a0x 0.8 x \u092c\u093f\u0928\u093e 30 \u00b0 1<br \/>\n= 20 x 12 x 100 x 10\u00a0<sup>-4<\/sup>\u00a0x 0.8 x<span id=\"MathJax-Element-3-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-15\" class=\"math\"><span id=\"MathJax-Span-16\" class=\"mrow\"><span id=\"MathJax-Span-17\" class=\"mfrac\"><span id=\"MathJax-Span-18\" class=\"mn\">1<\/span><span id=\"MathJax-Span-19\" class=\"mn\">2<\/span><\/span><\/span><\/span><\/span><br \/>\n= 0.96 \u090f\u0928\u090f\u092e<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 10.<\/strong><br \/>\n\u0926\u094b \u0917\u0924\u093f\u092e\u093e\u0928 \u0915\u0949\u0907\u0932 \u092e\u0940\u091f\u0930, \u090f\u092e<sub>1<\/sub>\u0914\u0930 \u090f\u092e<sub>2<\/sub>\u092e\u0947\u0902 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0935\u093f\u0935\u0930\u0923 \u0939\u0948\u0902:<br \/>\n\u0906\u0930<sub>1<\/sub>= 10 , \u090f\u0928<sub>1<\/sub>= 30, \u090f<sub>1<\/sub>= 3.6 x 10<sup>-3<\/sup>\u092e\u0940\u091f\u0930<sup>2<\/sup>, \u092c\u0940<sub>1<\/sub>= 0.25 \u091f\u0940<br \/>\n\u0906\u0930<sub>2<\/sub>= 14 , \u090f\u0928<sub>2<\/sub>= 42, \u090f<sub>2<\/sub>= 1.8 x 10<sup>-3<\/sup>\u00a0\u092e\u0940\u091f\u0930<sup>2<\/sup>, \u092c\u0940<sub>2<\/sub>= 0.50 \u091f\u0940 (\u0935\u0938\u0902\u0924 \u0938\u094d\u0925\u093f\u0930\u093e\u0902\u0915 \u0926\u094b \u092e\u0940\u091f\u0930 \u0915\u0947 \u0932\u093f\u090f \u0938\u092e\u093e\u0928 \u0939\u0948\u0902)\u0964\u00a0(\u090f) \u0935\u0930\u094d\u0924\u092e\u093e\u0928 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932\u0924\u093e \u0914\u0930 (\u092c\u0940) \u090f\u092e<sub>2<\/sub>\u0914\u0930 \u090f\u092e<sub>1<\/sub>\u0915\u0940 \u0935\u094b\u0932\u094d\u091f\u0947\u091c \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932\u0924\u093e \u0915\u093e \u0905\u0928\u0941\u092a\u093e\u0924 \u0928\u093f\u0930\u094d\u0927\u093e\u0930\u093f\u0924 \u0915\u0930\u0947\u0902\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n\u0935\u0930\u094d\u0924\u092e\u093e\u0928 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932\u0924\u093e \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0928\u093e = NBA\/k<br \/>\n\u090f\u092e\u00a0<sub>1<\/sub>\u00a0\u0915\u0930\u0902\u091f \u0938\u0947\u0902\u0938\u093f\u091f\u093f\u0935\u093f\u091f\u0940<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52376\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-9.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 9\" width=\"404\" height=\"486\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52377\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-10.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 10\" width=\"385\" height=\"122\" \/><br \/>\n<strong>\u092a\u094d\u0930\u0936\u094d\u0928 11 \u0915\u0947 \u0932\u093f\u090f<\/strong><br \/>\n\u0964 \u090f\u0915 \u0915\u0915\u094d\u0937 \u092e\u0947\u0902, 6.5G (1G = RHT) \u0915\u093e \u090f\u0915 \u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092c\u0928\u093e\u090f \u0930\u0916\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u094b \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902\u00a0\u0938\u093e\u092e\u093e\u0928\u094d\u092f\u00a0\u0917\u0924\u093f \u0938\u0947 4.8 x 10\u00a0<sup>6<\/sup>\u00a0ms\u00a0<sup>-1<\/sup>\u00a0\u0915\u0940 \u0917\u0924\u093f \u0938\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0917\u094b\u0932\u0940 \u092e\u093e\u0930 \u0926\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u00a0\u0964\u00a0\u0938\u092e\u091d\u093e\u0907\u090f \u0915\u093f \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e \u092a\u0925 \u0935\u0943\u0924\u094d\u0924 \u0915\u094d\u092f\u094b\u0902 \u0939\u0948\u0964\u00a0\u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0915\u094d\u0937\u093e \u0915\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u091c\u094d\u091e\u093e\u0924 \u0915\u0940\u091c\u093f\u090f,<br \/>\n(e =1.6 x 10\u00a0<sup>-19<\/sup>\u00a0C, m = 9.1 x 10\u00a0<sup>-31<\/sup>\u00a0\u0915\u093f\u0917\u094d\u0930\u093e)\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52378\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-11.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 11\" width=\"384\" height=\"207\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 12.<\/strong><br \/>\n\u0905\u092d\u094d\u092f\u093e\u0938 4.11 \u092e\u0947\u0902 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0935\u0943\u0924\u094d\u0924\u0940\u092f \u0915\u0915\u094d\u0937\u093e \u092e\u0947\u0902 \u092a\u0930\u093f\u0915\u094d\u0930\u092e\u0923 \u0915\u0940 \u0906\u0935\u0943\u0924\u094d\u0924\u093f \u091c\u094d\u091e\u093e\u0924 \u0915\u0940\u091c\u093f\u090f\u0964\u00a0\u0915\u094d\u092f\u093e \u0909\u0924\u094d\u0924\u0930 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0940 \u0917\u0924\u093f \u092a\u0930 \u0928\u093f\u0930\u094d\u092d\u0930 \u0915\u0930\u0924\u093e \u0939\u0948?\u00a0\u0938\u092e\u091d\u093e\u0928\u093e\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52379\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-12.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 12\" width=\"386\" height=\"358\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 13.<\/strong><br \/>\n(a) \u0969\u0966 \u092b\u0947\u0930\u0947 \u0914\u0930 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u096e-\u0966 \u0938\u0947\u092e\u0940 \u0915\u0940 \u090f\u0915 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0941\u0902\u0921\u0932 \u091c\u093f\u0938\u092e\u0947\u0902 \u096c-\u0966 \u090f \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948, \u0967.\u0966 \u091f\u0940 \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u0947 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0932\u0902\u092c\u0935\u0924 \u0930\u0942\u092a \u0938\u0947 \u0928\u093f\u0932\u0902\u092c\u093f\u0924 \u0939\u0948\u0964 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0930\u0947\u0916\u093e\u090f\u0901 \u096c\u0966\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u093e\u0924\u0940 \u0939\u0948\u0902 \u0915\u0941\u0902\u0921\u0932 \u0915\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0964\u00a0\u0915\u093e\u0909\u0902\u091f\u0930-\u091f\u0949\u0930\u094d\u0915 \u0915\u0947 \u092a\u0930\u093f\u092e\u093e\u0923 \u0915\u0940 \u0917\u0923\u0928\u093e \u0915\u0930\u0947\u0902 \u091c\u093f\u0938\u0947 \u0915\u0949\u0907\u0932 \u0915\u094b \u092e\u094b\u0921\u093c\u0928\u0947 \u0938\u0947 \u0930\u094b\u0915\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0932\u093e\u0917\u0942 \u0915\u093f\u092f\u093e \u091c\u093e\u0928\u093e \u091a\u093e\u0939\u093f\u090f\u0964<br \/>\n(\u092c\u0940) \u0915\u094d\u092f\u093e \u0906\u092a\u0915\u093e \u0909\u0924\u094d\u0924\u0930 \u092c\u0926\u0932 \u091c\u093e\u090f\u0917\u093e, \u092f\u0926\u093f (\u090f) \u092e\u0947\u0902 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0941\u0902\u0921\u0932 \u0915\u094b \u0915\u093f\u0938\u0940 \u0905\u0928\u093f\u092f\u092e\u093f\u0924 \u0906\u0915\u093e\u0930 \u0915\u0947 \u0938\u092e\u0924\u0932\u0940\u092f \u0936\u094c\u091a\u093e\u0932\u092f \u0938\u0947 \u092c\u0926\u0932 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u091c\u094b \u0909\u0938\u0940 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u094b \u0918\u0947\u0930\u0924\u093e \u0939\u0948?\u00a0(\u0905\u0928\u094d\u092f \u0938\u092d\u0940 \u0935\u093f\u0935\u0930\u0923 \u092d\u0940 \u0905\u092a\u0930\u093f\u0935\u0930\u094d\u0924\u093f\u0924 \u0939\u0948\u0902)\u00a0\u00a0<strong>(\u0938\u0940\u092c\u0940\u090f\u0938\u0908 1998 \u0938\u0940)<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<strong>(\u090f)<\/strong>= \u090f\u0928\u092c\u0940\u0906\u0908\u090f \u092a\u093e\u092a 9 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0915\u0947, \u0939\u092e\u0947\u0902<br \/>\n\u03c4 = 30 \u090f\u0915\u094d\u0938 1 \u090f\u0915\u094d\u0938 6 \u090f\u0915\u094d\u0938\u090f\u0928 (8 \u090f\u0915\u094d\u0938 10<sup>-2<\/sup>)<sup>2<\/sup>\u092a\u093e\u092a 60<br \/>\n= 180 x \u092e\u093f\u0932\u0924\u093e \u0939\u0948 ( \u096e x \u0967\u0966-<sup>\u0968<\/sup>)<sup>\u0968<\/sup>\u0966.\u096e\u096c\u096c<br \/>\n= \u0969.\u0967\u0969<br \/>\n\u090f\u0928\u090f\u092e\u00a0\u092e\u0940\u091f\u0930\u00a0\u0915\u093e\u0909\u0902\u091f\u0930-\u091f\u0949\u0930\u094d\u0915 \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923\u00a0\u0969.\u0967\u0969\u00a0\u090f\u0928\u090f\u092e \u0939\u0948<br \/>\n<strong>(\u092c\u0940)<\/strong>\u00a0\u0909\u0924\u094d\u0924\u0930 \u0928\u0939\u0940\u0902 \u092c\u0926\u0932\u0947\u0917\u093e \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u091f\u0949\u0930\u094d\u0915 \u0915\u0949\u0907\u0932 \u0915\u0947 \u0906\u0915\u093e\u0930 \u092a\u0930 \u0928\u093f\u0930\u094d\u092d\u0930 \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u093e \u0939\u0948 \u092c\u0936\u0930\u094d\u0924\u0947 \u092f\u0939 \u0909\u0938\u0940 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u094b \u0918\u0947\u0930\u0924\u093e \u0939\u094b\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 14.<\/strong><br \/>\n\u0926\u094b \u0938\u0902\u0915\u0947\u0902\u0926\u094d\u0930\u093f\u0924 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u093f\u092f\u093e\u0901 \u0915\u094d\u0930\u092e\u0936\u0903 16 \u0938\u0947\u092e\u0940 \u0914\u0930 10 \u0938\u0947\u092e\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0935\u093e\u0932\u0940 X \u0914\u0930 Y, \u0909\u0924\u094d\u0924\u0930 \u0938\u0947 \u0926\u0915\u094d\u0937\u093f\u0923 \u0926\u093f\u0936\u093e \u0935\u093e\u0932\u0947 \u090f\u0915 \u0939\u0940 \u0909\u0930\u094d\u0927\u094d\u0935\u093e\u0927\u0930 \u0924\u0932 \u092e\u0947\u0902 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0902\u0964\u00a0\u0915\u0941\u0902\u0921\u0932 X \u092e\u0947\u0902 20 \u092e\u094b\u0921\u093c \u0939\u0948\u0902 \u0914\u0930 16 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948: \u0915\u0941\u0902\u0921\u0932 Y \u092e\u0947\u0902 25 \u092e\u094b\u0921\u093c \u0939\u0948\u0902 \u0914\u0930 18 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 X \u092e\u0947\u0902 \u0927\u093e\u0930\u093e \u0915\u0940 \u092d\u093e\u0935\u0928\u093e \u0935\u093e\u092e\u093e\u0935\u0930\u094d\u0924 \u0939\u0948, \u0914\u0930 Y \u092e\u0947\u0902 \u0926\u0915\u094d\u0937\u093f\u0923\u093e\u0935\u0930\u094d\u0924 \u0939\u0948, \u090f\u0915 \u092a\u0930\u094d\u092f\u0935\u0947\u0915\u094d\u0937\u0915 \u0915\u0947 \u0932\u093f\u090f \u091c\u094b \u0915\u0941\u0902\u0921\u0932\u093f\u092f\u094b\u0902 \u0915\u094b \u092a\u0936\u094d\u091a\u093f\u092e \u0915\u0940 \u0913\u0930 \u0926\u0947\u0916 \u0930\u0939\u093e \u0939\u0948 .\u00a0\u0909\u0928\u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u092e\u0947\u0902 \u0915\u0941\u0902\u0921\u0932\u093f\u092f\u094b\u0902 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0936\u0941\u0926\u094d\u0927 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0914\u0930 \u0926\u093f\u0936\u093e \u0926\u0947\u0902\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n\u0915\u0941\u0902\u0921\u0932 X \u0915\u0947 \u0932\u093f\u090f<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52380\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-13.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 13\" width=\"353\" height=\"601\" \/><br \/>\n<strong>\u092a\u094d\u0930\u0936\u094d\u0928 15.<\/strong><br \/>\n100 G (1 G = 10<sup>-4<\/sup>T) \u0915\u0947\u090f\u0915 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940\u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e \u0939\u094b\u0924\u0940 \u0939\u0948 \u091c\u094b \u0930\u0948\u0916\u093f\u0915 \u0906\u092f\u093e\u092e \u0915\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0932\u0917\u092d\u0917 10 \u0938\u0947\u092e\u0940 \u0914\u0930 \u0915\u094d\u0930\u0949\u0938-\u0938\u0947\u0915\u094d\u0936\u0928 \u0915\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0932\u0917\u092d\u0917 10<sup>-3<\/sup>\u00a0m<sup>2 \u0915\u0947 \u0938\u092e\u093e\u0928 \u0939\u094b\u0964<\/sup>.\u00a0\u0924\u093e\u0930 \u0915\u0947 \u0926\u093f\u090f \u0917\u090f \u0924\u093e\u0930 \u0915\u0940 \u0905\u0927\u093f\u0915\u0924\u092e \u0927\u093e\u0930\u093e-\u0935\u0939\u0928 \u0915\u094d\u0937\u092e\u0924\u093e 15 \u090f \u0939\u0948 \u0914\u0930 \u092a\u094d\u0930\u0924\u093f \u0907\u0915\u093e\u0908 \u0932\u0902\u092c\u093e\u0908 \u092e\u0947\u0902 \u0918\u0941\u092e\u093e\u0935\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u091c\u094b \u090f\u0915 \u0915\u094b\u0930 \u0915\u0947 \u091a\u093e\u0930\u094b\u0902 \u0913\u0930 \u0918\u093e\u0935 \u0939\u094b \u0938\u0915\u0924\u0940 \u0939\u0948, \u0905\u0927\u093f\u0915\u0924\u092e 1000 \u092e\u094b\u0921\u093c \u092e\u0940\u091f\u0930\u00a0<sup>-1 \u0939\u0948<\/sup>\u00a0\u0964\u00a0\u0906\u0935\u0936\u094d\u092f\u0915 \u0909\u0926\u094d\u0926\u0947\u0936\u094d\u092f \u0915\u0947 \u0932\u093f\u090f \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u0947 \u0915\u0941\u091b \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0921\u093f\u091c\u093e\u0907\u0928 \u0935\u093f\u0935\u0930\u0923 \u0938\u0941\u091d\u093e\u090f\u0902\u0964\u00a0\u092e\u093e\u0928 \u0932\u0947\u0902 \u0915\u093f \u0915\u094b\u0930 \u092b\u0947\u0930\u094b\u092e\u0948\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52381\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-14.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 14\" width=\"370\" height=\"65\" \/><br \/>\n\u0939\u092e I = 10 A \u0914\u0930 n = 800 \u0932\u0947 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964 \u0926\u093f\u090f \u0917\u090f \u0938\u094b\u0932\u0928\u0949\u0907\u0921 \u0915\u0940 \u0932\u0902\u092c\u093e\u0908 50 \u0938\u0947\u092e\u0940 \u0939\u094b \u0938\u0915\u0924\u0940 \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902 400 \u092e\u094b\u0921\u093c \u0939\u094b\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u0915\u094d\u0930\u0949\u0938-\u0938\u0947\u0915\u094d\u0936\u0928 \u0915\u093e \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u092b\u0932 = 5 x 10\u00a0<sup>-3<\/sup>\u00a0\u092e\u0940\u091f\u0930\u00a0<sup>2<\/sup>\u00a0(\u0926\u093f\u090f \u0917\u090f \u092e\u093e\u0928 \u0915\u093e \u092a\u093e\u0902\u091a \u0917\u0941\u0928\u093e) \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 16.<\/strong><br \/>\n\u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0906\u0930 \u0914\u0930 \u090f\u0928 \u0915\u0947 \u090f\u0915 \u092a\u0930\u093f\u092a\u0924\u094d\u0930 \u0915\u0941\u0902\u0921\u0932 \u0915\u0947 \u0932\u093f\u090f \u0935\u0930\u094d\u0924\u092e\u093e\u0928 \u092e\u0948\u0902 \u0932\u0947 \u091c\u093e\u0928\u0947 \u092e\u0941\u0921\u093c\u0924\u093e, \u092e\u0947\u0902 \u0905\u092a\u0928\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0938\u0947 \u090f\u0915 \u0926\u0942\u0930\u0940 \u090f\u0915\u094d\u0938 \u0905\u092a\u0928\u0940 \u0927\u0941\u0930\u0940 \u092a\u0930 \u090f\u0915 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u092d\u092f\u093e\u0935\u0939\u0924\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948,<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52382\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-15.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 15\" width=\"144\" height=\"59\" \/><br \/>\n(\u0915) \u092c\u0924\u093e\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u0907\u0938 \u092a\u0930\u093f\u091a\u093f\u0924 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u092e \u0915\u0930 \u0926\u0947\u0924\u093e \u0939\u0948 \u0915\u0941\u0902\u0921\u0932 \u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u092e\u0947\u0902 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0932\u093f\u090f \u092a\u0930\u093f\u0923\u093e\u092e\u0964<br \/>\n(\u092c\u0940) \u092c\u0930\u093e\u092c\u0930 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0906\u0930 \u0915\u0947 \u0926\u094b \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u0938\u0939-\u0905\u0915\u094d\u0937\u0940\u092f \u0917\u094b\u0932\u093e\u0915\u093e\u0930 \u0915\u0949\u0907\u0932\u094d\u0938 \u092a\u0930 \u0935\u093f\u091a\u093e\u0930 \u0915\u0930\u0947\u0902, \u0914\u0930 \u090f\u0915 \u0939\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0938\u092e\u093e\u0928 \u0927\u093e\u0930\u093e\u0913\u0902 \u0915\u094b \u0932\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u090f\u0928 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e, \u0914\u0930 \u0926\u0942\u0930\u0940 \u0906\u0930 \u0938\u0947 \u0905\u0932\u0917 \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0926\u093f\u0916\u093e\u090f\u0902 \u0915\u093f \u092e\u0927\u094d\u092f-\u092c\u093f\u0902\u0926\u0941 \u0915\u0947 \u092c\u0940\u091a \u0905\u0915\u094d\u0937 \u092a\u0930 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0949\u0907\u0932 \u090f\u0915 \u0926\u0942\u0930\u0940 \u092a\u0930 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0939\u094b\u0924\u0940 \u0939\u0948 \u091c\u094b R \u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u092e\u0947\u0902 \u091b\u094b\u091f\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948, \u0914\u0930 \u0907\u0938\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0926\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948,<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52383\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-16.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 16\" width=\"258\" height=\"50\" \/><br \/>\n(\u090f\u0915 \u091b\u094b\u091f\u0947 \u0938\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0932\u0917\u092d\u0917 \u090f\u0915 \u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0909\u0924\u094d\u092a\u0928\u094d\u0928 \u0915\u0930\u0928\u0947 \u0915\u0940 \u0910\u0938\u0940 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0915\u094b \u0939\u0947\u0932\u094d\u092e\u0939\u094b\u0932\u094d\u091f\u094d\u091c\u093c \u0915\u0949\u0907\u0932 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u091c\u093e\u0928\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964)<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<strong><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52384\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-17.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 17\" width=\"545\" height=\"108\" \/><br \/>\n(\u00a0\u092c\u0940)\u092c\u0924\u093e \u0926\u0947\u0902 \u0915\u093f \u0915\u0925\u0928 \u092e\u0947\u0902 \u092c\u0924\u093e\u090f \u0905\u0928\u0941\u0938\u093e\u0930 \u0926\u094b \u0915\u0949\u0907\u0932 \u0939\u0948\u0902\u0964\u00a0\u0926\u094b \u0915\u0941\u0902\u0921\u0932\u093f\u092f\u094b\u0902 \u0915\u0947 \u092c\u0940\u091a \u0915\u0940 \u091c\u0917\u0939 \u0915\u0947 \u092e\u0927\u094d\u092f-\u092c\u093f\u0902\u0926\u0941 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0932\u0902\u092c\u093e\u0908 2d \u0915\u0947 \u090f\u0915 \u091b\u094b\u091f\u0947 \u0938\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930,<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52385\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-18.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 18\" width=\"372\" height=\"274\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52386\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-19.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 19\" width=\"373\" height=\"427\" \/><br \/>\n\u092a\u094d\u0930\u0936\u094d\u0928 17\u00a0\u0926\u094d\u0935\u093e\u0930\u093e \u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948\u00a0\u0964<br \/>\n\u090f\u0915 \u091f\u0949\u0930\u0949\u0907\u0921 \u092e\u0947\u0902 \u0906\u0902\u0924\u0930\u093f\u0915 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e 25 \u0938\u0947\u092e\u0940 \u0914\u0930 \u092c\u093e\u0939\u0930\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e 26 \u0938\u0947\u092e\u0940 \u0915\u093e \u090f\u0915 \u0915\u094b\u0930 (\u0917\u0948\u0930-\u0932\u094c\u0939\u091a\u0941\u0902\u092c\u0915\u0940\u092f) \u0939\u094b\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0915\u0947 \u091a\u093e\u0930\u094b\u0902 \u0913\u0930 \u090f\u0915 \u0924\u093e\u0930 \u0915\u0947 3500 \u092b\u0947\u0930\u0947 \u0918\u093e\u0935 \u0939\u0948\u0902\u0964\u00a0\u092f\u0926\u093f \u0924\u093e\u0930 \u092e\u0947\u0902 \u0927\u093e\u0930\u093e 11 A \u0939\u0948, \u0924\u094b \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930<br \/>\n(i) \u091f\u094b\u0930\u0949\u092f\u0921 \u0915\u0947 \u092c\u093e\u0939\u0930<br \/>\n(ii)\u00a0\u091f\u094b\u0930\u0949\u092f\u0921\u00a0\u0915\u0947 \u0915\u094b\u0930 \u0915\u0947 \u0905\u0902\u0926\u0930, \u0914\u0930<br \/>\n(iii) \u091f\u094b\u0930\u0949\u092f\u0921 \u0938\u0947 \u0918\u093f\u0930\u0947 \u0916\u093e\u0932\u0940 \u0938\u094d\u0925\u093e\u0928 \u092e\u0947\u0902 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n\u0909\u0924\u094d\u0924\u0930:<br \/>\n(i) \u0936\u0942\u0928\u094d\u092f<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52387\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-20.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 20\" width=\"389\" height=\"196\" \/><br \/>\n<\/strong><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 18.<\/strong><br \/>\n\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092a\u094d\u0930\u0936\u094d\u0928\u094b\u0902 \u0915\u0947 \u0909\u0924\u094d\u0924\u0930 \u0926\u0947\u0902:<strong><br \/>\n<\/strong>(\u090f) \u090f\u0915 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u091c\u094b \u090f\u0915 \u092c\u093f\u0902\u0926\u0941 \u0938\u0947 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u092a\u0930\u093f\u092e\u093e\u0923 \u092e\u0947\u0902 \u092d\u093f\u0928\u094d\u0928 \u0939\u094b\u0924\u093e \u0939\u0948 \u0932\u0947\u0915\u093f\u0928 \u090f\u0915 \u0938\u094d\u0925\u093f\u0930 \u0926\u093f\u0936\u093e (\u092a\u0942\u0930\u094d\u0935 \u0938\u0947 \u092a\u0936\u094d\u091a\u093f\u092e) \u0939\u094b\u0924\u093e \u0939\u0948, \u090f\u0915 \u0915\u0915\u094d\u0937 \u092e\u0947\u0902 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u090f\u0915 \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u0915\u0915\u094d\u0937 \u092e\u0947\u0902 \u092a\u094d\u0930\u0935\u0947\u0936 \u0915\u0930\u0924\u093e \u0939\u0948 \u0914\u0930 \u0928\u093f\u0930\u0902\u0924\u0930 \u0917\u0924\u093f \u0915\u0947 \u0938\u093e\u0925 \u0938\u0940\u0927\u0947 \u092a\u0925 \u0915\u0947 \u0938\u093e\u0925 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u093f\u0924 \u092f\u093e\u0924\u094d\u0930\u093e \u0915\u0930\u0924\u093e \u0939\u0948\u0964\u00a0\u0915\u0923 \u0915\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0935\u0947\u0917 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0906\u092a \u0915\u094d\u092f\u093e \u0915\u0939 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902?<\/p>\n<p>(\u092c\u0940) \u090f\u0915 \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u090f\u0915 \u092e\u091c\u092c\u0942\u0924 \u0914\u0930 \u0917\u0948\u0930-\u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0935\u093e\u0924\u093e\u0935\u0930\u0923 \u092e\u0947\u0902 \u092a\u094d\u0930\u0935\u0947\u0936 \u0915\u0930\u0924\u093e \u0939\u0948 \u091c\u094b \u092a\u0930\u093f\u092e\u093e\u0923 \u0914\u0930 \u0926\u093f\u0936\u093e \u0926\u094b\u0928\u094b\u0902 \u092e\u0947\u0902 \u090f\u0915 \u092c\u093f\u0902\u0926\u0941 \u0938\u0947 \u0926\u0942\u0938\u0930\u0947 \u092c\u093f\u0902\u0926\u0941 \u092a\u0930 \u092d\u093f\u0928\u094d\u0928 \u0939\u094b\u0924\u093e \u0939\u0948 \u0914\u0930 \u090f\u0915 \u091c\u091f\u093f\u0932 \u092a\u094d\u0930\u0915\u094d\u0937\u0947\u092a\u0935\u0915\u094d\u0930 \u0915\u0947 \u092c\u093e\u0926 \u0907\u0938\u0938\u0947 \u092c\u093e\u0939\u0930 \u0906\u0924\u093e \u0939\u0948\u0964\u00a0\u0915\u094d\u092f\u093e \u0907\u0938\u0915\u0940 \u0905\u0902\u0924\u093f\u092e \u0917\u0924\u093f \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0917\u0924\u093f \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0917\u0940 \u092f\u0926\u093f \u0907\u0938\u0947 \u092a\u0930\u094d\u092f\u093e\u0935\u0930\u0923 \u0915\u0947 \u0938\u093e\u0925 \u0915\u094b\u0908 \u091f\u0915\u0930\u093e\u0935 \u0928\u0939\u0940\u0902 \u0939\u0941\u0906?<\/p>\n<p>(c) \u092a\u0936\u094d\u091a\u093f\u092e \u0938\u0947 \u092a\u0942\u0930\u094d\u0935 \u0915\u0940 \u0913\u0930 \u092f\u093e\u0924\u094d\u0930\u093e \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u093e \u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0909\u0924\u094d\u0924\u0930 \u0938\u0947 \u0926\u0915\u094d\u0937\u093f\u0923 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u094b\u0938\u094d\u091f\u0948\u091f\u093f\u0915 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0935\u093e\u0932\u0947 \u0915\u0915\u094d\u0937 \u092e\u0947\u0902 \u092a\u094d\u0930\u0935\u0947\u0936 \u0915\u0930\u0924\u093e \u0939\u0948\u0964\u00a0\u0909\u0938 \u0926\u093f\u0936\u093e \u0915\u094b \u0928\u093f\u0930\u094d\u0926\u093f\u0937\u094d\u091f \u0915\u0930\u0947\u0902 \u091c\u093f\u0938\u092e\u0947\u0902 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u094b \u0909\u0938\u0915\u0947 \u0938\u0940\u0927\u0940-\u0930\u0947\u0916\u093e \u092a\u0925 \u0938\u0947 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u0923 \u0938\u0947 \u0930\u094b\u0915\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u090f\u0915 \u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0928\u093e \u091a\u093e\u0939\u093f\u090f\u0964<br \/>\n\u0909\u0924\u094d\u0924\u0930:<br \/>\n(a) \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0905\u0902\u0926\u0930 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u093e \u092c\u0932 \u0915\u093f\u0938\u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<br \/>\n<span id=\"MathJax-Element-4-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-20\" class=\"math\"><span id=\"MathJax-Span-21\" class=\"mrow\"><span id=\"MathJax-Span-22\" class=\"msubsup\"><span id=\"MathJax-Span-23\" class=\"texatom\"><span id=\"MathJax-Span-24\" class=\"mrow\"><span id=\"MathJax-Span-25\" class=\"texatom\"><span id=\"MathJax-Span-26\" class=\"mrow\"><span id=\"MathJax-Span-27\" class=\"munderover\"><span id=\"MathJax-Span-28\" class=\"mi\">\u090f\u092b<\/span><span id=\"MathJax-Span-29\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><\/span><\/span><span id=\"MathJax-Span-30\" class=\"texatom\"><span id=\"MathJax-Span-31\" class=\"mrow\"><span id=\"MathJax-Span-32\" class=\"mi\">\u090f\u092e<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-33\" class=\"mo\">=\u00a0<\/span><span id=\"MathJax-Span-34\" class=\"mi\">\u0915\u094d\u092f\u0942<\/span><span id=\"MathJax-Span-35\" class=\"mo\">(<\/span><span id=\"MathJax-Span-36\" class=\"texatom\"><span id=\"MathJax-Span-37\" class=\"mrow\"><span id=\"MathJax-Span-38\" class=\"munderover\"><span id=\"MathJax-Span-39\" class=\"mi\">\u0935\u0940<\/span><span id=\"MathJax-Span-40\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-41\" class=\"mo\">\u00d7<\/span><span id=\"MathJax-Span-42\" class=\"texatom\"><span id=\"MathJax-Span-43\" class=\"mrow\"><span id=\"MathJax-Span-44\" class=\"munderover\"><span id=\"MathJax-Span-45\" class=\"mi\">\u092c\u0940<\/span><span id=\"MathJax-Span-46\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-47\" class=\"mo\">)<\/span><\/span><\/span><\/span><br \/>\n\u092f\u0926\u093f vx B \u0936\u0942\u0928\u094d\u092f \u0939\u0948, \u0924\u094b \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 bd \u0936\u0942\u0928\u094d\u092f \u092a\u0930 \u092c\u0932 (\u0905\u0935\u093f\u0915\u094d\u0937\u0947\u092a\u093f\u0924 \u0930\u0939\u0947\u0917\u093e)\u0964\u00a0\u0907\u0938\u0932\u093f\u090f, \u092f\u093e \u0924\u094b \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0935\u0947\u0917 v \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 B \u0915\u0947 \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u092f\u093e \u0935\u093f\u0930\u094b\u0927\u0940 \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u0939\u0948\u0964<\/p>\n<p>(\u092c\u0940) \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u092a\u0930 \u092c\u0932 \u0932\u0917\u093e\u0924\u093e \u0939\u0948, \u091c\u094b \u0939\u092e\u0947\u0936\u093e \u0905\u092a\u0928\u0940 \u0917\u0924\u093f \u0915\u0947 \u0932\u0902\u092c\u0935\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 \u0914\u0930 \u0907\u0938\u0932\u093f\u090f \u0915\u094b\u0908 \u0915\u093e\u092e \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u093e \u0939\u0948\u0964\u00a0\u0907\u0938\u0932\u093f\u090f, \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923 \u0915\u0940 \u0905\u092a\u0928\u0940 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0917\u0924\u093f \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0905\u0902\u0924\u093f\u092e \u0917\u0924\u093f \u0939\u094b\u0917\u0940, \u092c\u0936\u0930\u094d\u0924\u0947 \u0915\u093f \u0935\u0939 \u092a\u0930\u094d\u092f\u093e\u0935\u0930\u0923 \u0938\u0947 \u0915\u094b\u0908 \u091f\u0915\u0930\u093e\u0935 \u0928 \u0915\u0930\u0947\u0964<\/p>\n<p>(c) \u0938\u094d\u0925\u093f\u0930\u0935\u0948\u0926\u094d\u092f\u0941\u0924 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u0915\u094d\u0930\u093f\u092f\u093e \u0915\u0947 \u0924\u0939\u0924, \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0909\u0924\u094d\u0924\u0930 \u0915\u0940 \u0913\u0930 (\u0927\u0928\u093e\u0924\u094d\u092e\u0915 \u092a\u094d\u0932\u0947\u091f \u0915\u0940 \u0913\u0930) \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u093f\u0924 \u0939\u094b \u091c\u093e\u090f\u0917\u093e\u0964\u00a0\u092f\u0926\u093f \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0915\u093e\u0930\u0923 \u092c\u0932 \u0926\u0915\u094d\u0937\u093f\u0923 \u0915\u0940 \u0913\u0930 \u0939\u0948 \u0924\u094b \u092f\u0939 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u093f\u0924 \u0930\u0939\u0947\u0917\u093e\u0964\u00a0\u0935\u0947\u0917 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902: \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u093e y \u092a\u0936\u094d\u091a\u093f\u092e \u0938\u0947 \u092a\u0942\u0930\u094d\u0935 \u0915\u0940 \u0913\u0930 \u0939\u0948, \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0932\u094b\u0930\u0947\u0902\u0924\u094d\u091c\u093c \u092c\u0932 \u0915\u0947 \u0932\u093f\u090f \u0935\u094d\u092f\u0902\u091c\u0915 \u0905\u0930\u094d\u0925\u093e\u0924<span id=\"MathJax-Element-5-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-48\" class=\"math\"><span id=\"MathJax-Span-49\" class=\"mrow\"><span id=\"MathJax-Span-50\" class=\"msubsup\"><span id=\"MathJax-Span-51\" class=\"texatom\"><span id=\"MathJax-Span-52\" class=\"mrow\"><span id=\"MathJax-Span-53\" class=\"texatom\"><span id=\"MathJax-Span-54\" class=\"mrow\"><span id=\"MathJax-Span-55\" class=\"munderover\"><span id=\"MathJax-Span-56\" class=\"mi\">\u090f\u092b<\/span><span id=\"MathJax-Span-57\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><\/span><\/span><span id=\"MathJax-Span-58\" class=\"texatom\"><span id=\"MathJax-Span-59\" class=\"mrow\"><span id=\"MathJax-Span-60\" class=\"mi\">\u090f\u092e<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-61\" class=\"mo\">=\u00a0<\/span><span id=\"MathJax-Span-62\" class=\"mo\">&#8211;\u00a0<\/span><span id=\"MathJax-Span-63\" class=\"mi\">\u0908\u00a0<\/span><span id=\"MathJax-Span-64\" class=\"mo\">(<\/span><span id=\"MathJax-Span-65\" class=\"texatom\"><span id=\"MathJax-Span-66\" class=\"mrow\"><span id=\"MathJax-Span-67\" class=\"munderover\"><span id=\"MathJax-Span-68\" class=\"mi\">\u0935\u0940<\/span><span id=\"MathJax-Span-69\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-70\" class=\"mo\">\u00d7<\/span><span id=\"MathJax-Span-71\" class=\"texatom\"><span id=\"MathJax-Span-72\" class=\"mrow\"><span id=\"MathJax-Span-73\" class=\"munderover\"><span id=\"MathJax-Span-74\" class=\"mi\">\u092c\u0940<\/span><span id=\"MathJax-Span-75\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><span id=\"MathJax-Span-76\" class=\"mo\">)<\/span><\/span><\/span><\/span>\u00a0\u092f\u0939 \u092c\u0924\u093e\u0924\u093e \u0939\u0948 \u0915\u093f \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930\u00a0<span id=\"MathJax-Element-6-Frame\" class=\"MathJax\"><span id=\"MathJax-Span-77\" class=\"math\"><span id=\"MathJax-Span-78\" class=\"mrow\"><span id=\"MathJax-Span-79\" class=\"texatom\"><span id=\"MathJax-Span-80\" class=\"mrow\"><span id=\"MathJax-Span-81\" class=\"munderover\"><span id=\"MathJax-Span-82\" class=\"mi\">\u092c\u0940<\/span><span id=\"MathJax-Span-83\" class=\"mo\">\u092e\u0948\u0902\u00a0<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u090a\u0930\u094d\u0927\u094d\u0935\u093e\u0927\u0930 \u0914\u0930 \u0928\u0940\u091a\u0947 \u0915\u0940 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0932\u093e\u0917\u0942 \u0915\u093f\u092f\u093e \u091c\u093e\u0928\u093e \u091a\u093e\u0939\u093f\u090f\u0964\u00a0\u092b\u094d\u0932\u0947\u092e\u093f\u0902\u0917 \u0915\u0947 \u092c\u093e\u090f\u0901 \u0939\u093e\u0925 \u0915\u0947 \u0928\u093f\u092f\u092e \u0915\u094b \u0932\u093e\u0917\u0942 \u0915\u0930\u0915\u0947 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u0926\u093f\u0936\u093e \u091c\u094d\u091e\u093e\u0924 \u0915\u0940 \u091c\u093e \u0938\u0915\u0924\u0940 \u0939\u0948\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 19.<\/strong><br \/>\n\u090f\u0915 \u0917\u0930\u094d\u092e \u0915\u0948\u0925\u094b\u0921 \u0926\u094d\u0935\u093e\u0930\u093e \u0909\u0924\u094d\u0938\u0930\u094d\u091c\u093f\u0924 \u0914\u0930 2.0 kV \u0915\u0947 \u0938\u0902\u092d\u093e\u0935\u093f\u0924 \u0905\u0902\u0924\u0930 \u0915\u0947 \u092e\u093e\u0927\u094d\u092f\u092e \u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u090f\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 0.15 T \u0915\u0947 \u090f\u0915\u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0938\u093e\u0925 \u090f\u0915 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u092a\u094d\u0930\u0935\u0947\u0936 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0915\u0947 \u092a\u094d\u0930\u0915\u094d\u0937\u0947\u092a\u0935\u0915\u094d\u0930 \u0915\u093e \u0928\u093f\u0930\u094d\u0927\u093e\u0930\u0923 \u0915\u0930\u0947\u0902 \u092f\u0926\u093f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 (\u090f) \u0905\u092a\u0928\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0935\u0947\u0917 \u0938\u0947 \u0905\u0928\u0941\u092a\u094d\u0930\u0938\u094d\u0925 \u0939\u0948, (\u092c\u0940) \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u0935\u0947\u0917 \u0915\u0947 \u0938\u093e\u0925 30 \u0921\u093f\u0917\u094d\u0930\u0940 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\nV \u0938\u0947 \u0917\u0941\u091c\u0930\u0924\u0947 \u0938\u092e\u092f \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924 KE<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52388\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-21.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 21\" width=\"414\" height=\"417\" \/><br \/>\n<strong>(b)<\/strong>\u091c\u092c \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u0926\u093f\u0936\u093e \u0915\u0947 \u0938\u093e\u0925 30\u00b0 \u0915\u093e \u0915\u094b\u0923 \u092c\u0928\u093e\u0924\u0947 \u0939\u0941\u090f r \u0935\u0947\u0917 \u0938\u0947 \u0917\u0924\u093f \u0915\u0930\u0924\u093e \u0939\u0948, \u0924\u094b r cos<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52389\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-22.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 22\" width=\"394\" height=\"290\" \/><br \/>\n<strong><br \/>\n\u092a\u094d\u0930\u0936\u094d\u0928 20 \u0939\u0948\u0964<\/strong><br \/>\n\u0939\u0947\u0932\u094d\u092e\u0939\u094b\u0932\u094d\u091f\u094d\u091c\u093c \u0915\u0949\u0907\u0932 (\u0935\u094d\u092f\u093e\u092f\u093e\u092e \u096a.\u0967\u096c \u092e\u0947\u0902 \u0935\u0930\u094d\u0923\u093f\u0924) \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0915\u0947 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u090f\u0915 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u090f\u0915 \u091b\u094b\u091f\u0947 \u0938\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0939\u0948 \u0914\u0930 \u0907\u0938\u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0966.\u096d\u096b \u091f\u0940 \u0939\u0948\u0964 \u0909\u0938\u0940 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902, \u0915\u0949\u0907\u0932\u094d\u0938 \u0915\u0947 \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0905\u0915\u094d\u0937 \u0915\u0947 \u0932\u093f\u090f \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u090f\u0915 \u0938\u092e\u093e\u0928 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u094b\u0938\u094d\u091f\u0948\u091f\u093f\u0915 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092c\u0928\u093e\u090f \u0930\u0916\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 .\u00a0(\u090f\u0915\u0932 \u092a\u094d\u0930\u091c\u093e\u0924\u093f) \u0906\u0935\u0947\u0936\u093f\u0924 \u0915\u0923\u094b\u0902 \u0915\u093e \u090f\u0915 \u0938\u0902\u0915\u0940\u0930\u094d\u0923 \u092a\u0941\u0902\u091c 15 kV \u0938\u0947 \u0924\u094d\u0935\u0930\u093f\u0924 \u0939\u094b\u0915\u0930 \u0907\u0938 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0915\u0941\u0902\u0921\u0932\u093f\u092f\u094b\u0902 \u0915\u0940 \u0927\u0941\u0930\u0940 \u0914\u0930 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u094b\u0938\u094d\u091f\u0948\u091f\u093f\u0915 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0926\u094b\u0928\u094b\u0902 \u0915\u0947 \u0932\u0902\u092c\u0935\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u092a\u094d\u0930\u0935\u0947\u0936 \u0915\u0930\u0924\u093e \u0939\u0948\u0964\u00a0\u092f\u0926\u093f \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u094b\u0938\u094d\u091f\u0948\u091f\u093f\u0915 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u096f.\u0966 x \u0967\u0966\u00a0<sup>\u096b<\/sup>\u00a0\u0935\u0940 \u092e\u0940\u091f\u0930\u00a0<sup>-1<\/sup>\u00a0\u0939\u094b\u0928\u0947\u00a0\u092a\u0930 \u092c\u0940\u092e \u0905\u092a\u0930\u093f\u0935\u0930\u094d\u0924\u093f\u0924 \u0930\u0939\u0924\u093e \u0939\u0948\u00a0, \u0924\u094b \u090f\u0915 \u0938\u0930\u0932 \u0905\u0928\u0941\u092e\u093e\u0928 \u0932\u0917\u093e\u090f\u0902 \u0915\u093f \u092c\u0940\u092e \u092e\u0947\u0902 \u0915\u094d\u092f\u093e \u0939\u0948\u0964\u00a0\u0909\u0924\u094d\u0924\u0930 \u0905\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0915\u094d\u092f\u094b\u0902 \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52390\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-23.png\" alt=\"\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u092a\u094d\u0930\u092d\u093e\u0930 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 23\" width=\"265\" height=\"247\" \/><br \/>\n\u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0915\u0923 \u0921\u094d\u092f\u0942\u091f\u094d\u0930\u0949\u0928 \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948\u0964<br \/>\n\u092a\u0930\u093f\u0923\u093e\u092e \u0905\u0926\u094d\u0935\u093f\u0924\u0940\u092f \u0928\u0939\u0940\u0902 \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u092f\u0939 e\/m \u0905\u0928\u0941\u092a\u093e\u0924 He\u00a0<sup>+ +<\/sup>\u00a0, Li\u00a0<sup>. \u0915\u0947<\/sup>\u00a0\u0932\u093f\u090f \u0938\u0924\u094d\u092f \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948<sup>+++<\/sup>\u00a0\u0906\u0926\u093f\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 21.<\/strong><br \/>\n0.45 \u092e\u0940\u091f\u0930 \u0932\u0902\u092c\u093e\u0908 \u0914\u0930 60 \u0917\u094d\u0930\u093e\u092e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u0940 \u090f\u0915 \u0938\u0940\u0927\u0940 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0938\u0902\u0935\u093e\u0939\u0915 \u091b\u0921\u093c \u0915\u094b \u0907\u0938\u0915\u0947 \u0938\u093f\u0930\u094b\u0902 \u092a\u0930 \u0926\u094b \u090a\u0930\u094d\u0927\u094d\u0935\u093e\u0927\u0930 \u0924\u093e\u0930\u094b\u0902 \u0926\u094d\u0935\u093e\u0930\u093e \u0928\u093f\u0932\u0902\u092c\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u0924\u093e\u0930\u094b\u0902 \u0915\u0947 \u092e\u093e\u0927\u094d\u092f\u092e \u0938\u0947 \u091b\u0921\u093c \u092e\u0947\u0902 5.0 A \u0915\u0940 \u0927\u093e\u0930\u093e \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964&#8221;<br \/>\n(\u090f) \u0915\u0902\u0921\u0915\u094d\u091f\u0930 \u0915\u094b \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0930\u0942\u092a \u0938\u0947 \u0915\u094c\u0928 \u0938\u093e \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0928\u093e \u091a\u093e\u0939\u093f\u090f \u0924\u093e\u0915\u093f \u0924\u093e\u0930\u094b\u0902 \u092e\u0947\u0902 \u0924\u0928\u093e\u0935 \u0936\u0942\u0928\u094d\u092f \u0939\u094b?<br \/>\n(b) \u092f\u0926\u093f \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u094b \u092a\u0939\u0932\u0947 \u0915\u0940 \u0924\u0930\u0939 \u0939\u0940 \u0930\u0916\u0924\u0947 \u0939\u0941\u090f \u0927\u093e\u0930\u093e \u0915\u0940 \u0926\u093f\u0936\u093e \u0909\u0932\u091f \u0926\u0940 \u091c\u093e\u090f \u0924\u094b \u0924\u093e\u0930\u094b\u0902 \u092e\u0947\u0902 \u0915\u0941\u0932 \u0924\u0928\u093e\u0935 \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0917\u093e?\u00a0(\u0924\u093e\u0930\u094b\u0902 \u0915\u0947 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u092a\u0930 \u0927\u094d\u092f\u093e\u0928 \u0928 \u0926\u0947\u0902\u0964) g = 9.8 ms<sup>-2<\/sup>\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<strong>(\u090f)<\/strong>\u0924\u093e\u0930 \u092e\u0947\u0902 \u0924\u0928\u093e\u0935 \u0936\u0942\u0928\u094d\u092f \u0939\u0948 \u092f\u0926\u093f \u0915\u0930\u0902\u091f \u0915\u0947 \u0915\u093e\u0930\u0923 \u0915\u0930\u0902\u091f \u0932\u0947 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u0924\u093e\u0930 \u092a\u0930 \u092c\u0932 \u0924\u093e\u0930 \u0915\u0947 \u0935\u091c\u0928 \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0914\u0930 \u0935\u093f\u092a\u0930\u0940\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964\u00a0\u092f\u0939 \u0939\u0948, \u092c\u0940\u0906\u0908\u090f\u0932 = \u092e\u093f\u0932\u0940\u0917\u094d\u0930\u093e\u092e<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52391\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-24.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 24\" width=\"248\" height=\"66\" \/><br \/>\n<strong>(\u092c\u0940)<\/strong>\u092f\u0926\u093f \u0927\u093e\u0930\u093e \u0915\u094b \u0909\u0932\u091f \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948, \u0924\u094b \u0924\u0928\u093e\u0935 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0914\u0930 \u0924\u093e\u0930 \u0915\u0947 \u092d\u093e\u0930 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0924\u093e\u0930 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u0947 \u092c\u0932 \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0924\u093e \u0939\u0948\u0964\u00a0\u092f\u0939 \u0939\u0948,<br \/>\n\u091f\u0940 = \u092c\u0940\u090f\u0932 + \u092e\u093f\u0932\u0940\u0917\u094d\u0930\u093e\u092e<br \/>\n= 0.26 x 5 x 0.45 + 60 x 10\u00a0<sup>-3<\/sup>\u00a0x 9.8<br \/>\n= 1.18 \u090f\u0928\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 22.<\/strong><br \/>\n\u0915\u093f\u0938\u0940 \u0935\u093e\u0939\u0928 \u0915\u0940 \u092c\u0948\u091f\u0930\u0940 \u0915\u094b \u0909\u0938\u0915\u0947 \u0906\u0930\u0902\u092d\u093f\u0915 \u092e\u094b\u091f\u0930 \u0938\u0947 \u091c\u094b\u0921\u093c\u0928\u0947 \u0935\u093e\u0932\u0947 \u0924\u093e\u0930 300 A (\u0925\u094b\u0921\u093c\u0947 \u0938\u092e\u092f \u0915\u0947 \u0932\u093f\u090f) \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964\u00a0\u092f\u0926\u093f \u0924\u093e\u0930\u094b\u0902 \u0915\u0940 \u0932\u0902\u092c\u093e\u0908 70 \u0938\u0947\u092e\u0940 \u0914\u0930 1.5 \u0938\u0947\u092e\u0940 \u0915\u0940 \u0926\u0942\u0930\u0940 \u0939\u0948, \u0924\u094b \u0909\u0928\u0915\u0947 \u092c\u0940\u091a \u092a\u094d\u0930\u0924\u093f \u0907\u0915\u093e\u0908 \u0932\u0902\u092c\u093e\u0908 \u0915\u093e \u092c\u0932 \u0915\u093f\u0924\u0928\u093e \u0939\u094b\u0917\u093e?\u00a0\u092c\u0932 \u0906\u0915\u0930\u094d\u0937\u0915 \u0939\u0948 \u092f\u093e \u092a\u094d\u0930\u0924\u093f\u0915\u0930\u094d\u0937\u0923<strong>(HSEB2001)<br \/>\n<\/strong><strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52392\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-25.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 25\" width=\"238\" height=\"129\" \/><br \/>\n\u091a\u0942\u0901\u0915\u093f \u0926\u094b \u0924\u093e\u0930\u094b\u0902 \u092e\u0947\u0902 \u0927\u093e\u0930\u093e\u090f\u0901 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e\u0913\u0902 \u092e\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902 \u0907\u0938\u0932\u093f\u090f \u092c\u0932 \u092a\u094d\u0930\u0924\u093f\u0915\u0930\u094d\u0937\u0923 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 23.<\/strong><br \/>\n10.0 \u0938\u0947\u092e\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u0947 \u092c\u0947\u0932\u0928\u093e\u0915\u093e\u0930 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 1.5 T \u0915\u093e \u090f\u0915 \u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u094c\u091c\u0942\u0926 \u0939\u0948, \u0907\u0938\u0915\u0940 \u0926\u093f\u0936\u093e \u092a\u0942\u0930\u094d\u0935 \u0938\u0947 \u092a\u0936\u094d\u091a\u093f\u092e \u092e\u0947\u0902 \u0905\u0915\u094d\u0937 \u0915\u0947 \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u0939\u0948\u0964\u00a0\u0909\u0924\u094d\u0924\u0930 \u0938\u0947 \u0926\u0915\u094d\u0937\u093f\u0923 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 7.0 A \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u093e \u090f\u0915 \u0924\u093e\u0930 \u0907\u0938 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0938\u0947 \u0939\u094b\u0915\u0930 \u0917\u0941\u091c\u0930\u0924\u093e \u0939\u0948\u0964\u00a0\u0924\u093e\u0930 \u092a\u0930 \u0932\u0917\u0928\u0947 \u0935\u093e\u0932\u0947 \u092c\u0932 \u0915\u093e \u092a\u0930\u093f\u092e\u093e\u0923 \u0914\u0930 \u0926\u093f\u0936\u093e \u0915\u094d\u092f\u093e \u0939\u0948 \u092f\u0926\u093f,<br \/>\n(a) \u0924\u093e\u0930 \u0905\u0915\u094d\u0937 \u0915\u094b \u0915\u093e\u091f\u0924\u093e \u0939\u0948,<br \/>\n(b) \u0924\u093e\u0930 \u0915\u094b NS \u0938\u0947 \u200b\u200b\u0909\u0924\u094d\u0924\u0930-\u0909\u0924\u094d\u0924\u0930-\u092a\u0936\u094d\u091a\u093f\u092e \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0918\u0941\u092e\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<br \/>\n(\u0938\u0940) \u090f\u0928\u090f\u0938 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0924\u093e\u0930 \u0915\u094b \u0905\u0915\u094d\u0937 \u0938\u0947 6.0 \u0938\u0947\u092e\u0940 \u0915\u0940 \u0926\u0942\u0930\u0940 \u0938\u0947 \u0915\u092e \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52393\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-26.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 26\" width=\"398\" height=\"401\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52394\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-27.png\" alt=\"\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c \u0914\u0930 \u092e\u0948\u0917\u094d\u0928\u0947\u091f\u093f\u091c\u094d\u092e 27\" width=\"287\" height=\"88\" \/><br \/>\n<strong>\u092a\u094d\u0930\u0936\u094d\u0928 \u0968\u096a.<\/strong><br \/>\n\u0969\u0966\u0966\u0966 G \u0915\u093e \u090f\u0915 \u0938\u092e\u093e\u0928 \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0927\u0928\u093e\u0924\u094d\u092e\u0915 z-\u0926\u093f\u0936\u093e \u0915\u0947 \u0905\u0928\u0941\u0926\u093f\u0936 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0939\u0948\u0964\u00a010 \u0938\u0947\u092e\u0940 \u0914\u0930 5 \u0938\u0947\u092e\u0940 \u092d\u0941\u091c\u093e \u0935\u093e\u0932\u0947 \u090f\u0915 \u0906\u092f\u0924\u093e\u0915\u093e\u0930 \u0932\u0942\u092a \u092e\u0947\u0902 12 \u090f \u0915\u0940 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u091a\u093f\u0924\u094d\u0930 \u092e\u0947\u0902 \u0926\u093f\u0916\u093e\u090f \u0917\u090f \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u092e\u093e\u092e\u0932\u094b\u0902 \u092e\u0947\u0902 \u0932\u0942\u092a \u092a\u0930 \u091f\u0949\u0930\u094d\u0915 \u0915\u094d\u092f\u093e \u0939\u0948?\u00a0\u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092e\u093e\u092e\u0932\u0947 \u092a\u0930 \u092c\u0932 \u0915\u094d\u092f\u093e \u0939\u0948?\u00a0\u0915\u094c\u0928 \u0938\u093e \u092e\u093e\u092e\u0932\u093e \u0938\u094d\u0925\u093f\u0930 \u0938\u0902\u0924\u0941\u0932\u0928 \u0938\u0947 \u092e\u0947\u0932 \u0916\u093e\u0924\u093e \u0939\u0948?<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52395\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-28.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 28\" width=\"350\" height=\"562\" \/><br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52396\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-29.png\" alt=\"\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c \u0914\u0930 \u092e\u0948\u0917\u094d\u0928\u0947\u091f\u093f\u091c\u094d\u092e 29\" width=\"374\" height=\"282\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52397\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-30.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 30\" width=\"423\" height=\"623\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 25.<\/strong><br \/>\n20<strong>\u00a0\u092b\u0947\u0930\u094b\u0902 \u0935\u093e\u0932\u0940<\/strong>\u00a0\u090f\u0915 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0914\u0930 10 cm \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u094b 0.10 T \u0915\u0947 \u090f\u0915\u0938\u092e\u093e\u0928 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u0947 \u0924\u0932 \u0915\u0947 \u0905\u092d\u093f\u0932\u092e\u094d\u092c \u092e\u0947\u0902 \u0930\u0916\u093e \u0917\u092f\u093e \u0939\u0948\u0964\u00a0\u092f\u0926\u093f \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u092e\u0947\u0902 \u0927\u093e\u0930\u093e 5.0 A \u0939\u0948, \u0924\u094b<br \/>\n(a) \u0915\u0941\u0923\u094d\u0921\u0932\u0940<br \/>\n\u092a\u0930 \u0915\u0941\u0932 \u092c\u0932\u0906\u0918\u0942\u0930\u094d\u0923,(b) \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u092a\u0930 \u0915\u0941\u0932 \u092c\u0932,<br \/>\n(c) \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u092a\u0930 \u0914\u0938\u0924 \u092c\u0932 \u0915\u094d\u092f\u093e \u0939\u0948?<br \/>\n(\u0915\u0941\u0902\u0921\u0932\u0940 10<sup>-5<\/sup>\u092e\u0940\u091f\u0930<sup>2<\/sup>\u0915\u094d\u0930\u0949\u0938-\u0905\u0928\u0941\u092d\u093e\u0917\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u0924\u093e\u0902\u092c\u0947 \u0915\u0947 \u0924\u093e\u0930 \u0938\u0947 \u092c\u0928\u093e \u0939\u0948, \u0914\u0930 \u0924\u093e\u0902\u092c\u0947 \u092e\u0947\u0902 \u092e\u0941\u0915\u094d\u0924 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0918\u0928\u0924\u094d\u0935 \u0932\u0917\u092d\u0917 10<sup>29<\/sup>\u00a0\u092e\u0940\u091f\u0930<sup>3<\/sup>\u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948)<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52398\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-31.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 31\" width=\"322\" height=\"193\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 26.<\/strong><br \/>\n60 \u0938\u0947\u092e\u0940 \u0932\u0902\u092c\u0940 \u0914\u0930 4.0 \u0938\u0947\u092e\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0935\u093e\u0932\u0940 \u090f\u0915 \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u092e\u0947\u0902 300 \u092b\u0947\u0930\u094b\u0902 \u0935\u093e\u0932\u0940 \u0935\u093e\u0907\u0902\u0921\u093f\u0902\u0917 \u0915\u0940 3 \u092a\u0930\u0924\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964\u00a02.5 \u0917\u094d\u0930\u093e\u092e \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e \u090f\u0915 2.0 \u0938\u0947\u092e\u0940 \u0932\u0902\u092c\u093e \u0924\u093e\u0930 \u0905\u092a\u0928\u0940 \u0927\u0941\u0930\u0940 \u0915\u0947 \u0905\u092d\u093f\u0932\u0902\u092c \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e (\u0907\u0938\u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0915\u0947 \u092a\u093e\u0938) \u0915\u0947 \u0905\u0902\u0926\u0930 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948;\u00a0\u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u0947 \u0924\u093e\u0930 \u0914\u0930 \u0905\u0915\u094d\u0937 \u0926\u094b\u0928\u094b\u0902 \u0915\u094d\u0937\u0948\u0924\u093f\u091c \u0924\u0932 \u092e\u0947\u0902 \u0939\u0948\u0902\u0964\u00a0\u0924\u093e\u0930 \u0915\u094b \u092a\u0930\u093f\u0928\u093e\u0932\u093f\u0915\u093e \u0915\u0940 \u0927\u0941\u0930\u0940 \u0915\u0947 \u0938\u092e\u093e\u0928\u093e\u0902\u0924\u0930 \u0926\u094b \u0932\u0940\u0921\u094b\u0902 \u0915\u0947 \u092e\u093e\u0927\u094d\u092f\u092e \u0938\u0947 \u090f\u0915 \u092c\u093e\u0939\u0930\u0940 \u092c\u0948\u091f\u0930\u0940 \u0938\u0947 \u091c\u094b\u0921\u093c\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u091c\u094b \u0924\u093e\u0930 \u092e\u0947\u0902 6.0 A \u0915\u0940 \u0927\u093e\u0930\u093e \u0915\u0940 \u0906\u092a\u0942\u0930\u094d\u0924\u093f \u0915\u0930\u0924\u0940 \u0939\u0948\u0964\u00a0\u0938\u094b\u0932\u0928\u0949\u0907\u0921 \u0915\u0940 \u0935\u093e\u0907\u0902\u0921\u093f\u0902\u0917 \u092e\u0947\u0902 \u0915\u0930\u0902\u091f \u0915\u093e \u0915\u093f\u0924\u0928\u093e \u092e\u093e\u0928 (\u0938\u0930\u094d\u0915\u0941\u0932\u0947\u0936\u0928 \u0915\u0940 \u0909\u091a\u093f\u0924 \u092d\u093e\u0935\u0928\u093e \u0915\u0947 \u0938\u093e\u0925) \u0924\u093e\u0930 \u0915\u0947 \u0935\u091c\u0928 \u0915\u093e \u0938\u092e\u0930\u094d\u0925\u0928 \u0915\u0930 \u0938\u0915\u0924\u093e \u0939\u0948?\u00a0\u091c\u0940 = 9.8 \u090f\u092e\u090f\u0938<sup>-2<\/sup>\u0964<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52399\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-32.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 32\" width=\"382\" height=\"238\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 27.<\/strong><br \/>\n\u090f\u0915 \u0917\u0948\u0932\u094d\u0935\u0947\u0928\u094b\u092e\u0940\u091f\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u093e \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 12 Q \u0939\u0948 \u0914\u0930 \u092e\u0940\u091f\u0930 3 mA \u0915\u0940 \u0927\u093e\u0930\u093e \u0915\u0947 \u0932\u093f\u090f \u092a\u0942\u0930\u094d\u0923 \u092a\u0948\u092e\u093e\u0928\u0947 \u092a\u0930 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u0923 \u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u0906\u092a \u092e\u0940\u091f\u0930 \u0915\u094b 0 \u0938\u0947 18 V \u0915\u0947 \u0930\u0947\u0902\u091c \u0935\u093e\u0932\u0947 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u092e\u0947\u0902 \u0915\u0948\u0938\u0947 \u092c\u0926\u0932\u0947\u0902\u0917\u0947?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n\u092f\u0939\u093e\u0901 1=3 mA = 3 x 10<sup>-3<\/sup>A<br \/>\n\u0917\u0948\u0932\u094d\u0935\u0947\u0928\u094b\u092e\u0940\u091f\u0930 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927, G = 12 \u0917\u0948\u0932\u094d\u0935\u0947\u0928\u094b\u092e\u0940\u091f\u0930 \u0915\u094b \u0926\u093f\u090f \u0917\u090f \u0909\u091a\u094d\u091a \u0936\u094d\u0930\u0947\u0923\u0940 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 R \u0915\u094b \u091c\u094b\u0921\u093c\u0915\u0930 0 \u0938\u0947 V (\u092f\u0939\u093e\u0901 V = 18 V) \u0915\u0947 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52400\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-33.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 33\" width=\"399\" height=\"161\" \/><\/p>\n<p><strong>\u092a\u094d\u0930\u0936\u094d\u0928 28.<\/strong><br \/>\n\u090f\u0915 \u0917\u0948\u0932\u094d\u0935\u0947\u0928\u094b\u092e\u0940\u091f\u0930 \u0915\u0941\u0923\u094d\u0921\u0932\u0940 \u0915\u093e \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 15\u03a9 \u0939\u0948 \u0914\u0930 \u092e\u0940\u091f\u0930 4 mA \u0915\u0940 \u0927\u093e\u0930\u093e \u0915\u0947 \u0932\u093f\u090f \u092a\u0942\u0930\u094d\u0923 \u092a\u0948\u092e\u093e\u0928\u0947 \u092a\u0930 \u0935\u093f\u0915\u094d\u0937\u0947\u092a\u0923 \u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0939\u0948\u0964\u00a0\u0906\u092a \u092e\u0940\u091f\u0930 \u0915\u094b 0 \u0938\u0947 6 \u0915\u0947 \u0930\u0947\u0902\u091c \u0915\u0947 \u090f\u092e\u0940\u091f\u0930 \u092e\u0947\u0902 \u0915\u0948\u0938\u0947 \u092c\u0926\u0932\u0947\u0902\u0917\u0947?<br \/>\n<strong>\u0909\u0924\u094d\u0924\u0930:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-52401\" src=\"https:\/\/www.reilsolar.com\/library\/wp-content\/uploads\/sites\/8\/2021\/09\/NCERT-Solutions-for-Class-12-Physics-Chapter-4-Moving-Charges-and-Magnetism-34.png\" alt=\"NCERT Solutions for Class 12 Physics Chapter 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 34\" width=\"398\" height=\"279\" \/><\/p>\n<p>\u0939\u092e \u0909\u092e\u094d\u092e\u0940\u0926 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902 \u0915\u093f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u094b\u0932\u0942\u0936\u0928\u094d\u0938 \u0915\u094d\u0932\u093e\u0938 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 \u0906\u092a\u0915\u0947 \u0932\u093f\u090f \u092e\u0926\u0926\u0917\u093e\u0930 \u0938\u093e\u092c\u093f\u0924 \u0939\u094b\u0902\u0917\u0947\u0964\u00a0\u092f\u0926\u093f \u0906\u092a\u0915\u0947 \u092a\u093e\u0938 \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0915\u094b\u0908 \u092a\u094d\u0930\u0936\u094d\u0928 \u0939\u0948\u0902, \u0924\u094b \u0928\u0940\u091a\u0947 \u090f\u0915 \u091f\u093f\u092a\u094d\u092a\u0923\u0940 \u0915\u0930\u0947\u0902 \u0914\u0930 \u0939\u092e \u0906\u092a\u0938\u0947 \u091c\u0932\u094d\u0926 \u0938\u0947 \u091c\u0932\u094d\u0926 \u0938\u0902\u092a\u0930\u094d\u0915 \u0915\u0930\u0947\u0902\u0917\u0947\u0964<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938 \u091a\u0948\u092a\u094d\u091f\u0930 4 \u092e\u0942\u0935\u093f\u0902\u0917 \u091a\u093e\u0930\u094d\u091c\u0947\u091c \u090f\u0902\u0921 \u092e\u0948\u0917\u094d\u0928\u0947\u091f\u093f\u091c\u094d\u092e \u092a\u093e\u0930\u094d\u091f \u0911\u092b\u00a0\u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u0949\u0932\u094d\u092f\u0942\u0936\u0902\u0938 \u092b\u0949\u0930 \u0915\u094d\u0932\u093e\u0938 12 \u092b\u093f\u091c\u093f\u0915\u094d\u0938\u00a0\u0964\u00a0\u092f\u0939\u093e\u0902 \u0939\u092e\u0928\u0947 \u0926\u093f\u092f\u093e \u0939\u0948\u0964\u00a0\u0915\u0915\u094d\u0937\u093e 12 \u092d\u094c\u0924\u093f\u0915\u0940 \u0915\u0947 \u0932\u093f\u090f \u090f\u0928\u0938\u0940\u0908\u0906\u0930\u091f\u0940 \u0938\u092e\u093e\u0927\u093e\u0928 \u0905\u0927\u094d\u092f\u093e\u092f 4 \u0917\u0924\u093f\u092e\u093e\u0928 \u0906\u0935\u0947\u0936 \u0914\u0930 \u091a\u0941\u0902\u092c\u0915\u0924\u094d\u0935 NCERT Solutions For Class 12 Physics Chapter 4 Moving Charges and Magnetism \u0924\u0916\u093c\u094d\u0924\u093e \u0938\u0940\u092c\u0940\u090f\u0938\u0908 \u092a\u093e\u0920\u092f\u092a\u0941\u0938\u094d\u0924\u0915 NCERT \u0915\u0915\u094d\u0937\u093e \u0915\u0915\u094d\u0937\u093e 12 \u0935\u093f\u0937\u092f \u092d\u094c\u0924\u093f\u0915 [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":650,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[1823,1824],"class_list":["post-717","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-solutions-for-class-12-physics","tag-ncert-solutions-for-class-12-physics","tag-ncert-solutions-for-class-12-physics-chapter-4"],"_links":{"self":[{"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/posts\/717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/users\/82"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/comments?post=717"}],"version-history":[{"count":1,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/posts\/717\/revisions"}],"predecessor-version":[{"id":718,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/posts\/717\/revisions\/718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/media\/650"}],"wp:attachment":[{"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/media?parent=717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/categories?post=717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reilsolar.com\/library\/wp-json\/wp\/v2\/tags?post=717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}