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Manipal Medical Manipal Medical Solved Paper-2003

  • question_answer
    There is 10 units of charge at the centre of circle of radius 1 m. The work done in moving 1 unit of charge once around the circle is:

    A)  150 unit       

    B)  100 unit

    C)  10 unit        

    D)  zero

    Correct Answer: D

    Solution :

     Here charge at centre = 10 units, radius of circle (r) = 10 m and charge moved around circle =1 unit, we know that when the charge is at the centre of a circle, the circumference will be equipotential, so work done in moving a charge around the circle is zero.


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