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12th Class Physics Electrostatics & Capacitance Question Bank MCQ - Electrostatic Potential and Capacitance

  • question_answer
    How much work is required to carry a \[6\,\mu C\]charge from the negative to the positive terminal of a 9 V battery?

    A) \[54\times {{10}^{-3}}J\]                     

    B) \[54\times {{10}^{-9}}J\]

    C) \[54\times {{10}^{-6}}J\]                     

    D) \[54\times {{10}^{-12}}J\]

    Correct Answer: C

    Solution :

    (c) \[54\times {{10}^{-6}}J\] Here,   \[q=6\mu C=6\times {{10}^{-6}}C,\,V=9\,V\] We know that, \[W=qV=6\times {{10}^{-6}}\times 9\] \[=54\times {{10}^{-6}}J\]


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