Two particles

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

Problem

Two particles, each of mass mm and charge qq, are attached to the two ends of a light rigid rod of length 2R2R. The rod is rotated at constant angular speed about a perpendicular axis passing through its centre. Find the ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the centre of the rod. (1) q2m\frac{q}{2m} (2) qm\frac{q}{m} (3) 2qm\frac{2q}{m} (4) qπm\frac{q}{\pi m}

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