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

  • question_answer
    A circular coil having N turns is made from a wire of length L meter. If a current I ampere is passed through it and is placed in a magnetic field of B Tesla, the maximum torque on it is                                             [MP PMT 2001]

    A)            Directly proportional to N

    B)            Inversely proportional to N

    C)            Inversely proportional to \[{{N}^{2}}\]

    D)            Independent of N

    Correct Answer: A

    Solution :

               Because \[{{\tau }_{\max }}=BiNA\] Þ \[\tau \propto N\].


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