2. Solved Papers
  3. CET Karnataka Engineering

CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2005

  • question_answer
    Four metal conductors having different shapes (a) a sphere                        (b) cylinder (c) pear                                (d) lightning conductor are mounted on insulating stands and charged. The one which is best suited to retain the charges for a longer time is:

    A)  1                                            

    B)  2

    C)  3                                            

    D)  4

    Correct Answer: A

    Solution :

    The sphere will retain the charge for longer time, because in case of spherical metal conductor, the charge quickly spreads uniformly over the entire surface.


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