question_answer

Two particles, each of mass m and charge q, are attached to the two ends of a light rigid rod of length 1R. The rod is rotated at constant angular speed about a perpendicular axis passing through its centre. The ratio of the magnitudes of the magnetic moment of the system and its angular momentum about the centre of the rod is

A) \[\frac{q}{2m}\]

B) \[\frac{q}{m}\]

C) \[\frac{2q}{m}\]

D) \[\frac{q}{\pi m}\]