Questions
A conducting solid sphere having uniform charge Q on it has radius R. It is rotating with an angular velocity If a uniform magnetic field B is present perpendicular to axis of rotation then the torque on sphere will be
detailed solution
Correct option is B
Magnetic moment of sphere is M thenM23mR2ω=q2m⇒M=qωR23 Torque =MBsin90∘=qωR2B3Talk to our academic expert!
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