A circular current loop of magnetic moment \( M \) is in an arbitra... VIDEO
A circular current loop of magnetic moment \( M \) is in an arbitrary orientation in an external magnetic field \( \mathbf{B} \). The work done to rotate
\( \mathrm{P} \) the loop by \( 30^{\circ} \) about an axis perpendicular to its plane is
W
(a) \( M B \).
(b) \( \sqrt{3} \frac{M B}{2} \).
(c) \( \frac{M B}{2} \).
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