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JEE Main & Advanced Physics Magnetism Question Bank Self Evaluation Test - Magnetism and Matter

  • question_answer
    A permanent magnet in the shape of a thin cylinder of length \[10\text{ }cm\] has magnetization \[(M)={{10}^{6}}\,A\,{{m}^{-1}}\]. Its magnetization current\[{{I}_{M}}\]is

    A) \[{{10}^{5}}\,A\]

    B) \[{{10}^{6}}\,A\]

    C) \[{{10}^{7}}\,A\]

    D) \[{{10}^{8}}\,A\]

    Correct Answer: A

    Solution :

    [a] \[{{I}_{M}}=ML={{10}^{6}}\times 0.1={{10}^{-5}}\,A\]


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