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A magnet of total magnetic moment 10^(-2...

A magnet of total magnetic moment `10^(-2)hati " A-m"^(2)` is placed in a time varying magnetic field, `Bhati(cosomegat)` where B = 1 Tesla and `omega` = 0.125 rad/s. The work done for reversing the direction of the magnetic moment at t = 1 second, is :

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