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  3. BHU PMT

BHU PMT BHU PMT (Screening) Solved Paper-2008

  • question_answer
    A charge Q is uniformly distributed over a large square plate of copper. The electric field at a point very close to the centre of the plate is 10 V/m. If the copper plate is replaced by a plastic plate of the same geometrical dimensions and carrying the same charge Q uniformly distributed, then the electric field at the point P will be

    A)  5 V/m                                  

    B)  zero

    C)  10 V/m               

    D)  20 V/m

    Correct Answer: C

    Solution :

                     Electric field will remain same as charge density\[\sigma \]remain same\[(E=\sigma /{{\varepsilon }_{0}})\].


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