Question:
A thin non conducting horizontal disc of mass m having total
Last updated: 5/30/2023
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A thin non conducting horizontal disc of mass m having total charge q distributed uniformly over its surface can rotate freely about its own axis Initially when the disc is stationary a magnetic field B directed perpendicular to the plane is switched on at t 0 Find the angular velocity acquired by disc as a function of time if B kt where t is time B kt IR