5 70 On a smooth horizontal table a disc is placed with non

Last updated: 6/11/2023

5 70 On a smooth horizontal table a disc is placed with non conducting ring with uniformly distributed charge q fixed on its circumference Both disc and ring are of mass m and radius r If a uniform magnetic field of induction B which is symmetric with centre of disc is switched on in vertically downward direction find the angular speed attained by disc due to this aR