A bar magnet of magnetic moment $ M $ is bent as a part of the circle shown in the figure. The new magnetic moment is

Question

A bar magnet of magnetic moment $ M $ is bent as a part of the circle shown in the figure. The new magnetic moment is, $ M $, $ \frac{3 M}{5 \pi} $, $ \frac{5 M}{3 \pi} $, $ \frac{2 M}{\pi} $

MARKS App · Accepted Answer

According to the question: Initially, M = q m 5 6 × 2 π R Now it is bent M ′ = q m R ⇒ M ′ = 3 M 5 π

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