A bar magnet of magnetic moment `1.5JT^-1` lies aligned with the direction of a uniform magnetic field of `0.22T`.
(a) What is the amount of work done to turn the magnet so as to align its mangetic moment
(i) normal to the field direction, (ii) opposite to the field direction?
(b) What is the torque on the magnet in cases (i) and (ii)?

Explanation

To solve the problem step by step, we will calculate the work done to turn the magnet and the torque in the two specified cases.

### Given Data:
- Magnetic moment, \( M = 1.5 \, \text{JT}^{-1} \)
- Magnetic field, \( B = 0.22 \, \text{T} \)

### Part (a): Work Done

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