JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Force and Torque on a Current Carrying Conductor

  • question_answer
    The radius of a circular loop is r and a current i  is flowing in it. The equivalent magnetic moment will be [CPMT 1990]

    A)            ir    

    B)            \[2\pi ir\]

    C)            \[i\pi {{r}^{2}}\]                  

    D)            \[\frac{1}{{{r}^{2}}}\]

    Correct Answer: C

    Solution :

               \[M=i\pi {{r}^{2}}\]


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