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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Capacitance

  • question_answer
    If n drops, each of capacitance C, coalesce to form a single big drop, then the ratio of the energy stored in the big drop to that in each small drop will be                          [UPSEAT 2002]

    A)            \[n:\text{ 1}\]                      

    B)            \[{{n}^{\text{1}/\text{3}}}:\text{ 1}\]

    C)            \[{{n}^{\text{5}/\text{3}}}:\text{ 1}\]                           

    D)            \[{{n}^{\text{2}}}:\text{ 1}\]

    Correct Answer: C

    Solution :

               \[{{U}_{Big}}={{n}^{5/3}}\,{{u}_{small}}\]


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