{"id":4396,"date":"2025-06-07T04:28:54","date_gmt":"2025-06-07T04:28:54","guid":{"rendered":"https:\/\/diznr.com\/?p=4396"},"modified":"2025-06-07T04:28:54","modified_gmt":"2025-06-07T04:28:54","slug":"class-12th-physics-electric-charges-and-fields-introduction-electrostatics-electrodynamics-1-part","status":"publish","type":"post","link":"https:\/\/www.reilsolar.com\/pdf\/class-12th-physics-electric-charges-and-fields-introduction-electrostatics-electrodynamics-1-part\/","title":{"rendered":"Class 12th Physics-Electric Charges and Fields-Introduction-Electrostatics Electrodynamics-Part-1."},"content":{"rendered":"

Class 12th Physics-Electric Charges and Fields-Introduction-Electrostatics\u00a0 Electrodynamics-Part-1.<\/p>\n

[fvplayer id=”750″]<\/p>\n

Here is a clear and simple explanation of Class 12th Physics \u2013 Chapter: Electric Charges and Fields<\/strong> (Part 1: Introduction to Electrostatics and Electrodynamics):<\/p>\n

\n

\u26a1\ufe0f Class 12 Physics \u2013 Electric Charges and Fields<\/strong><\/h2>\n

\ud83d\udcda Chapter 1: Introduction to Electrostatics & Electrodynamics \u2013 Part 1<\/strong><\/h3>\n
\n

\ud83d\udd37 What is Electrostatics?<\/strong><\/h3>\n

Electrostatics<\/strong> is the branch of physics that deals with electric charges at rest<\/strong>.<\/p>\n

\n

\ud83d\udca1 In simple words: Electrostatics studies how stationary electric charges behave and interact.<\/p>\n<\/blockquote>\n

\n

\ud83d\udd36 What is Electrodynamics?<\/strong><\/h3>\n

Electrodynamics<\/strong> deals with electric charges in motion<\/strong> and how they produce magnetic fields<\/strong> and electric currents<\/strong>.<\/p>\n

\n

\ud83d\udca1 Example: Current flowing through a wire, electric motors, etc.<\/p>\n<\/blockquote>\n

\n

\u269b\ufe0f Electric Charge \u2013 Basic Concept<\/strong><\/h2>\n

\u27a4 Definition:<\/strong><\/h3>\n

Electric charge is a fundamental property<\/strong> of matter that causes it to experience a force in an electric field<\/strong>.<\/p>\n

\u27a4 Types of Charges:<\/strong><\/h3>\n
    \n
  1. \n

    Positive Charge (+)<\/strong> \u2014 e.g., Protons<\/p>\n<\/li>\n

  2. \n

    Negative Charge (\u2212)<\/strong> \u2014 e.g., Electrons<\/p>\n<\/li>\n<\/ol>\n

    \n

    \ud83e\uddf2 Like charges repel<\/strong>
    \u26a1\ufe0f Unlike charges attract<\/strong><\/p>\n<\/blockquote>\n

    \n

    \ud83d\udd22 Basic Properties of Electric Charge<\/strong><\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n
    Property<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
    Additivity<\/strong><\/td>\nTotal charge = sum of individual charges<\/td>\n<\/tr>\n
    Conservation of Charge<\/strong><\/td>\nCharge can neither be created nor destroyed<\/td>\n<\/tr>\n
    Quantization<\/strong><\/td>\nCharge exists in discrete packets (q = \u00b1ne)<\/td>\n<\/tr>\n
    Transferability<\/strong><\/td>\nCharges can be transferred (e.g., by rubbing)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    <\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \n

    \ud83e\uddee Elementary charge (e) = 1.6 \u00d7 10\u207b\u00b9\u2079 C<\/strong><\/p>\n<\/blockquote>\n

    \n

    \u26a1 Methods of Charging a Body<\/strong><\/h2>\n
      \n
    1. \n

      By Friction<\/strong> \u2013 Rubbing two objects (e.g., rubbing a balloon on hair)<\/p>\n<\/li>\n

    2. \n

      By Conduction<\/strong> \u2013 Direct contact with a charged body<\/p>\n<\/li>\n

    3. \n

      By Induction<\/strong> \u2013 Without touching, using influence of nearby charge<\/p>\n<\/li>\n<\/ol>\n

      \n

      \ud83d\udd04 Coulomb’s Law (Introduction Only)<\/strong><\/h2>\n

      Coulomb\u2019s law gives the force between two point charges<\/strong>:<\/p>\n

      F=k\u22c5q1q2r2F = k \\cdot \\frac{q_1 q_2}{r^2}<\/span>F<\/span>=<\/span><\/span>k<\/span>\u22c5<\/span><\/span>r<\/span>2<\/span><\/span><\/span><\/span>q<\/span>1<\/span><\/span>\u200b<\/span><\/span>q<\/span>2<\/span><\/span>\u200b<\/span><\/span><\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

      Where:<\/p>\n