6 A copper disc of radius 0 1 m is rotated about its centre

Last updated: 6/3/2023

6 A copper disc of radius 0 1 m is rotated about its centre with 20 revolutions per second in a uniform magne field of 0 1 T with its plane perpendicular the field The emf induced across the radius of disc is TL 1 20 3 2 mV volt 2 4 20 millivolt 20 V