A thin ring of radius R meter has charge q coulomb uniforml…

Physics Moving Charge and Magnetism Magnetic Force and Torque on a Current Carrying Loop and Magnetic Dipole Moment MCQ (Single Correct)

A thin ring of radius R meter has charge q coulomb uniformly spread on it. The ring rotates about its axis with a constant frequency of f revolutions/s. The value of magnetic induction (in ) at the centre of the ring is

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