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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A thin non-conducting ring of mass m carrying a charge q can freely rotate about its axis. At t=0, the ring was at rest and no magnetic field was present. Then suddenly a magnetic field B was set perpendicular to the plane. Find the angular velocity acquired by the ring.

A thin non-conducting ring of mass m carrying a charge q can freely rotate about its axis. At t=0, the ring was at rest and no magnetic field was present. Then suddenly a magnetic field B was set perpendicular to the plane. Find the angular velocity acquired by the ring.

A thin non-conducting ring of mass m carrying a charge q can freely rotate about its axis. At t=0 the ring was at rest and no magnetic field was present. Then suddenly a magnetic field B was set perpendicular to the plane. Find the angular velocity acquired by the ring.