JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    The energy stored in a condenser of capacity \[C\] which has been raised to a potential \[V\]is given by [MP PMT 1993; CPMT 1974; DCE 2002; RPET 2003]

    A)                                                      \[\frac{1}{2}CV\]

    B)                                      \[\frac{1}{2}C{{V}^{2}}\]

    C)                    \[CV\]

    D)                                      \[\frac{1}{2VC}\]

    Correct Answer: B

    Solution :

               \[U=\int_{\,0}^{\,V}{CV\,dV}=\frac{1}{2}C{{V}^{2}}\]


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