A charge is spread uniformly over an insulated loop of radius

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A charge qq is spread uniformly over an insulated loop of radius rr. If it is rotated with an angular velocity ω\omega with respect to normal axis then the magnetic moment of the loop is (1) 12qωr2\frac{1}{2} q\omega r^2 (2) 43qωr2\frac{4}{3} q\omega r^2 (3) 32qωr2\frac{3}{2} q\omega r^2 (4) qωr2q\omega r^2

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