Question:
A rectangular loop of sides $10 \mathrm{~cm}$ and $5 \mathrm{~cm}$ carrying a current I of $12 \mathrm{~A}$ is place in different orientations as shown in the figures below :
If there is a uniform magnetic field of $0.3 \mathrm{~T}$ in the positive $\mathrm{z}$ direction, in which orientations the loop would be in (i) stable equilibrium and (ii) unstable equilibrium ?
Correct Option: 1
Solution: