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MGIMS WARDHA MGIMS WARDHA Solved Paper-2006

  • question_answer
    A solid metal sphere of radius 50 cm carries a charge \[25\times {{10}^{-10}}C.\]The electrostatic potential at a distance of 20 cm from the centre will be:

    A) 25 V                                      

    B) 15 V

    C) 35 V                                      

    D) 45 V

    Correct Answer: D

    Solution :

    \[V=\frac{q}{4\pi {{\varepsilon }_{0}}r}\] \[=\frac{9\times {{10}^{9}}\times 25\times {{10}^{-10}}}{(50/100)}\] \[=45V\]


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