JEE Main & Advanced
Physics
Magnetism
Question Bank
Numerical Value Type Questions - Magnetism and Matter
question_answer
A magnet of total magnetic moment \[{{10}^{-2}}\hat{i}A-{{m}^{2}}\]is placed in a time varying magnetic field, \[B\hat{i}\left( cos\omega t \right)\] where B = 1 Tesla and \[\omega \text{= }0.125\text{ }rad/s.\]The work done (in joule) for reversing the direction of the magnetic moment at t = 1 second, is: