A nonconducting of radius r has charge Q. A magnetic field perpendicular to the plane of ring changes at the rate (dB)/(dt). The torque experienced by the ring is

A nonconducting of radius r has charge Q. A magnetic field perpendicul

1.	A nonconducting of radius r has charge Q. A magnetic field perpendicular to the plane of ring changes at the rate (dB)/(dt). The torque experienced by the ring is
Answer» zero `QR^(2)(DB)/(dt)` `1/2 Qr^(2)(dB)/(dt)` `PIR^(2)Q(dB)/(dt)` Answer :C

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A nonconducting of radius r has charge Q. A magnetic field perpendicular to the plane of ring changes at the rate (dB)/(dt). The torque experienced by the ring is

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