5 3 A metal disc of radius 25cm rotates at a constant

Last updated: 6/11/2023

5 3 A metal disc of radius 25cm rotates at a constant angular velocity 130rad s about its central axis Find the potential difference between the centre and the rim of the disc if a The external magnetic field is absent b The external uniform magnetic field of induction 5mT exist which is directed perpendicular to the disc Ans a 3nV b 20mV