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Manipal Medical Manipal Medical Solved Paper-2005

  • question_answer
    A conducting circular loop of radius r carries a constant current\[I\]. It is placed in a uniform magnetic field\[{{B}_{0}}\]such that\[{{B}_{0}}\]is perpendicular to the plane of the loop. The magnetic force acting on the loop is:

    A)  \[Ir\,{{B}_{0}}\]

    B)  \[2\pi Ir\,{{B}_{0}}\]

    C)  \[\pi Ir\,{{B}_{0}}\]

    D)  \[0\]

    Correct Answer: D

    Solution :

     If closed loop of any shape is placed in a uniform magnetic field, the net magnetic force on the loop is zero. Hence, [d] is correct.


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