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AMU Medical AMU Solved Paper-1997

  • question_answer
    In a region of space, the variation of the electric potential\[\phi \]with distance from the origin is shown in the figure. The electric field strength is zero at

    A)  Point A          

    B)  Point B

    C)  Point C

    D)  Point D

    Correct Answer: C

    Solution :

    : Field strength \[=-\frac{d\phi }{dr}\] \[(\phi )\]is constant along the line parallel to (r) axis. At point C, potential\[(\phi )\]is constant \[\therefore \]Field strength = zero at C.


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