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BVP Medical BVP Medical Solved Paper-2009

  • question_answer
    The potential on the hollow sphere of radius 1 m is 1000 V, then potential at \[\frac{1}{4}\] m from the centre of the sphere is

    A)  1000 V                                 

    B)  500V

    C)  250V                                    

    D)  Zero

    Correct Answer: A

    Solution :

                    For a charged conducting sphere [or shell of charge at surface (r = R)]                                 \[{{V}_{s}}=\frac{1}{4\pi {{\varepsilon }_{0}}}\frac{Q}{R}\] Inside the shell the potential remains constant at all points and equal to potential at the surface                 \[{{V}_{in}}=constant={{V}_{s}}\] \[\therefore \]  \[{{V}_{in}}=1000V\]


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