A copper disc of radius `0.1 m` rotates about its centre with `10` revolutuion per second in a
Channel: Doubtnut
Date: 2020-01-19

A copper disc of radius `0.1 m` rotates about its centre with `10` revolutuion per second in a uniform magnetic field of `0.1` tesla with its plane perpendicular to the field. The emf induced across the radius of the disc is