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

  • question_answer
    Electric potential due to a point charge -q at distance x from it is given by:

    A) \[Kq/{{x}^{2}}\]                     

    B) \[Kq/x\]

    C) \[-Kq/{{x}^{2}}\]                    

    D) \[-Kq/x\]

    Correct Answer: D

    Solution :

    (d) \[-Kq/x\] Electric potential at distance x due to charge -q is given by, \[V=\frac{\left( -q \right)}{4\pi {{\varepsilon }_{0}}x}=\frac{-Kq}{x}\] \[\left[ \because \,\,K=\frac{1}{4\pi {{\varepsilon }_{0}}} \right]\]


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