180 3MB 2 A bar magnet of magnetic moment M is hung by a

Last updated: 6/10/2023

180 3MB 2 A bar magnet of magnetic moment M is hung by a thin cotton thread in a uniform magnetic field Work done by the external agent to rotate the bar magnet from stable equilibrium position to 120 with the direction of magnetic field is consider change in angular speed is zero MB 2 MB Mark for MB 2 hr min