A bar magnet of magnetic moment 2.0 JT-1 lies aligned with the direction of a uniform magnetic field….

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A bar magnet of magnetic moment 2.0 JT^-1 lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?

Options :-

1. 0.25 J
2. 0.5 J
3. 0.75 J
4. 1.0 J

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