A rectangular loop of sides
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 ?

  1. (b) and (d), respectively

  2. (b) and (c), respectively

  3. (a) and (b), respectively

  4. (a) and (c), respectively


Correct Option: 1

Solution:

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