A short bar magnet of moment `0*32JT^-1` is placed in a uniform external magnetic field of `0*15T`, if the bar is free to rotate in the plane of the field, which orientations would correspond to its, (i) stable and (ii) unstable equilibrium? What is the potential energy of the magnet in each case?
Text Solution
AI Generated Solution
To solve the problem, we need to determine the orientations of the bar magnet that correspond to stable and unstable equilibrium in a uniform magnetic field, as well as calculate the potential energy in each case.
### Step-by-Step Solution:
1. **Understanding the Magnetic Moment and Magnetic Field**:
- The magnetic moment (M) of the bar magnet is given as \(0.32 \, \text{JT}^{-1}\).
- The external magnetic field (B) is given as \(0.15 \, \text{T}\).
...
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