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  • CBSE Physics for Class 12 | Electrostatics | Coulomb’s Law

    Coulomb’s Law. If two stationary and point charges and are kept at a distance r, then it is found that force of attraction   or repulsion between them is i.e., ; (k = Proportionality constant) (1) Dependence of k : Constant k depends upon system of units and medium between the two charges. (i) Effect…

    August 13, 2017
  • CBSE Physics for Class 12 | Electrostatics | Methods of Charging.

    Methods of Charging. A body can be charged by following methods : (1) Charging By friction : In friction when two bodies are rubbed together, electrons are transferred from one body to the other. As a result of this one body becomes positively charged while the other negatively charged, e.g., when a glass rod is…

    August 13, 2017
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