Question

Which of the following loop is in stable equilibrium

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

For stable equilibrium potential energy should
be minimum
$U=-MBcos\theta$
$\theta \to$ angle $b/w\overrightarrow{M}$ and $\overrightarrow{B}$
$U_{min}$ at $\theta =0^{\circ }$