Fundamentholfundamenthol
JEE Main2019Physics
Q.

A magnet of total magnetic moment A-m2 is placed in a time varying magnetic field, B(cost) where B = 1 Tesla and = 0.125 rad/ s. The work done for reversing the direction of the magnetic moment at t = 1 second, is :

  1. A

    0.007 J

  2. B

    0.02 J

  3. C

    0.01 J

  4. D

    0.028 J

Solution

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