{"id":4392,"date":"2025-06-04T04:26:23","date_gmt":"2025-06-04T04:26:23","guid":{"rendered":"https:\/\/diznr.com\/?p=4392"},"modified":"2025-06-04T04:26:23","modified_gmt":"2025-06-04T04:26:23","slug":"class-12th-physics-electric-charges-and-fields-type-of-charges-positive-and-negative-part-3","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/pdf\/class-12th-physics-electric-charges-and-fields-type-of-charges-positive-and-negative-part-3\/","title":{"rendered":"Class 12th Physics-Electric Charges and Fields- Type of Charges &#8211; Positive and Negative part-3"},"content":{"rendered":"<p>Class 12th Physics-Electric Charges and Fields- Type of Charges &#8211; Positive and Negative part-3<\/p>\n<p>[fvplayer id=&#8221;748&#8243;]<\/p>\n<p>Here\u2019s a clear and student-friendly explanation of <strong>Class 12th Physics \u2013 Chapter: Electric Charges and Fields<\/strong>, focusing on <strong>\u201cTypes of Charges \u2013 Positive and Negative\u201d (Part-3)<\/strong>. Perfect for CBSE, NEET, and state board students.<\/p>\n<hr \/>\n<h2>\u26a1 <strong>Electric Charges \u2013 Part 3: Types of Charges (Positive and Negative)<\/strong><\/h2>\n<h3>\ud83d\udd39 <strong>What is Electric Charge?<\/strong><\/h3>\n<p>Electric charge is a fundamental property of matter responsible for electric force interactions. It comes in <strong>two types<\/strong>:<\/p>\n<hr \/>\n<h2>\u2705 <strong>Types of Charges<\/strong><\/h2>\n<table>\n<thead>\n<tr>\n<th>Type of Charge<\/th>\n<th>Symbol<\/th>\n<th>Examples<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Positive<\/strong><\/td>\n<td><code>+<\/code><\/td>\n<td>Protons, glass rubbed with silk<\/td>\n<\/tr>\n<tr>\n<td><strong>Negative<\/strong><\/td>\n<td><code>\u2013<\/code><\/td>\n<td>Electrons, ebonite rubbed with fur<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>\ud83d\udd01 <strong>How are Charges Produced?<\/strong><\/h2>\n<p>Charges are produced by <strong>friction<\/strong>, <strong>conduction<\/strong>, or <strong>induction<\/strong>.<\/p>\n<p>Example:<\/p>\n<ul>\n<li>When a <strong>glass rod<\/strong> is rubbed with <strong>silk<\/strong>, the glass rod loses electrons \u2192 becomes <strong>positively charged<\/strong>.<\/li>\n<li>When an <strong>ebonite rod<\/strong> is rubbed with <strong>fur<\/strong>, the ebonite gains electrons \u2192 becomes <strong>negatively charged<\/strong>.<\/li>\n<\/ul>\n<hr \/>\n<h2>\ud83e\uddf2 <strong>Like Charges and Unlike Charges<\/strong><\/h2>\n<table>\n<thead>\n<tr>\n<th>Interaction<\/th>\n<th>Behavior<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Like charges<\/td>\n<td>Repel each other (e.g., + vs + or \u2013 vs \u2013)<\/td>\n<\/tr>\n<tr>\n<td>Unlike charges<\/td>\n<td>Attract each other (e.g., + vs \u2013)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ud83e\uddea <strong>Example Activity<\/strong>:<br \/>\nBring a charged plastic comb near tiny paper pieces \u2013 they get attracted due to charge interaction.<\/p>\n<hr \/>\n<h2>\ud83e\udde0 <strong>Important Points<\/strong><\/h2>\n<ul>\n<li>Charge is <strong>quantized<\/strong>: <span class=\"katex\">q=\u00b1neq = \\pm ne<\/span>, where <span class=\"katex\">e=1.6\u00d710\u221219\u2009Ce = 1.6 \\times 10^{-19} \\, C<\/span><\/li>\n<li>Charge is <strong>conserved<\/strong>: It can neither be created nor destroyed.<\/li>\n<li>Charge is <strong>transferable<\/strong>: By rubbing or contact.<\/li>\n<li>Charges <strong>reside on the surface<\/strong> of conductors.<\/li>\n<\/ul>\n<hr \/>\n<h2>\u2699\ufe0f <strong>Real-Life Examples<\/strong><\/h2>\n<table>\n<thead>\n<tr>\n<th>Situation<\/th>\n<th>Charge Involved<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lightning<\/td>\n<td>Negative charge builds in clouds<\/td>\n<\/tr>\n<tr>\n<td>Static electricity<\/td>\n<td>Rubbing clothes, combing hair<\/td>\n<\/tr>\n<tr>\n<td>Photocopier machine<\/td>\n<td>Uses static charges to attract toner<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>\ud83d\udccc Diagram Idea (You can draw for notes)<\/h2>\n<pre><code>Glass Rod (+)         Silk Cloth (\u2013)\n    \u2193                         \u2193\nLoses electrons       Gains electrons\n\nEbonite Rod (\u2013)        Fur (+)\n    \u2193                         \u2193\nGains electrons       Loses electrons\n<\/code><\/pre>\n<hr \/>\n<h2>\ud83c\udf93 Tip for Exams:<\/h2>\n<blockquote><p>\ud83d\udd39 \u201cCharge is always conserved and quantized\u201d \u2013 always include this in theory answers.<br \/>\n\ud83d\udd39 Use proper SI units: Charge (Coulombs), Elementary Charge (e).<\/p><\/blockquote>\n<hr \/>\n<h2>\ud83d\udcda For Practice:<\/h2>\n<ul>\n<li>Q1: What happens when a positively charged object touches a neutral object?<\/li>\n<li>Q2: Why does a charged balloon stick to a wall?<\/li>\n<\/ul>\n<hr \/>\n<p>Would you like:<\/p>\n<ul>\n<li>A <strong>short summary PDF<\/strong>?<\/li>\n<li><strong>Numerical problems<\/strong> from this topic?<\/li>\n<li>A <strong>video explanation<\/strong> or <strong>animations<\/strong>?<\/li>\n<\/ul>\n<p>Let me know what format helps you best!<\/p>\n<h3><a href=\"https:\/\/ncert.nic.in\/textbook\/pdf\/leph101.pdf\" target=\"_blank\" rel=\"noopener\">Class 12th Physics-Electric Charges and Fields- Type of Charges &#8211; Positive and Negative part-3<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www.rjvision.org\/files\/catalog\/Board%20Sheet%20\/12th-Phy-Ch-1-Electric-Charge-&amp;-Field.pdf\" target=\"_blank\" rel=\"noopener\">I Exercise &#8211; II Electric Charges And Fields &#8211; Question Bank<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www.vedantu.com\/content-files-downloadable\/revision-notes\/cbse-class-12-physics-notes-chapter-1-electric-charges-and-fields.pdf\" target=\"_blank\" rel=\"noopener\">Revision Notes for Class 12 Physics Chapter 1 \u2013 Electric &#8230;<\/a><\/h3>\n<h3><a href=\"https:\/\/www2.tntech.edu\/leap\/murdock\/books\/v4chap1.pdf\" target=\"_blank\" rel=\"noopener\">Chapter 1 Electric Charge; Coulomb&#8217;s Law<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/ncert.nic.in\/textbook\/pdf\/leph103.pdf\" target=\"_blank\" rel=\"noopener\">Chapter Three &#8211; CURRENT ELECTRICITY<\/a><\/h3>\n<h3 class=\"LC20lb MBeuO DKV0Md\"><a href=\"https:\/\/www.spiroacademy.com\/pdf-notes\/study-meterials\/Physics\/electric_charge_and_field.pdf\" target=\"_blank\" rel=\"noopener\">ELECTRIC CHARGES AND FIELDS<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Class 12th Physics-Electric Charges and Fields- Type of Charges &#8211; Positive and Negative part-3 [fvplayer id=&#8221;748&#8243;] Here\u2019s a clear and student-friendly explanation of Class 12th Physics \u2013 Chapter: Electric Charges and Fields, focusing on \u201cTypes of Charges \u2013 Positive and Negative\u201d (Part-3). Perfect for CBSE, NEET, and state board students. \u26a1 Electric Charges \u2013 Part [&hellip;]<\/p>\n","protected":false},"author":64,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[972],"tags":[],"class_list":["post-4392","post","type-post","status-publish","format-standard","hentry","category-class-12-physics"],"_links":{"self":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/4392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/users\/64"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/comments?post=4392"}],"version-history":[{"count":0,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/posts\/4392\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/media?parent=4392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/categories?post=4392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reilsolar.com\/pdf\/wp-json\/wp\/v2\/tags?post=4392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}