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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Electric Field and Potential

  • question_answer
    The radius of a soap bubble whose potential is 16V is doubled. The new potential of the bubble will be                                                                                          [Pb. PMT 2000]

    A)            2V 

    B)            4V

    C)            8V

    D)            16V

    Correct Answer: C

    Solution :

                 Potential \[V\propto \frac{1}{r}\Rightarrow V'=\frac{V}{2}=8V\]   


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