JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    A parallel plate capacitor carries a charge \[q\]. The distance between the plates is doubled by application of a force. The work done by the force is                              [MP PET 2003]

    A)            Zero                                         

    B)            \[\frac{{{q}^{2}}}{C}\]

    C)            \[\frac{{{q}^{2}}}{2C}\]    

    D)            \[\frac{{{q}^{2}}}{4C}\]

    Correct Answer: C

    Solution :

               Work done appears in the form of energy which is given by \[\frac{{{q}^{2}}}{2C}\]


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