A horizontal surface is rough A ring is placed on it with

Last updated: 6/25/2023

A horizontal surface is rough A ring is placed on it with its plane parallel to the surface A charge 9 is uniformly Bot 3 2 distributed on this ring of radius R and mass m At t 0 a uniform magnetic field B QBOR 2mg The coefficient of friction is Find the time at which ring will start rotating about an axis perpendicular to its plane and passing through its centre in seconds 3 A B 1 C L is switched on r