A rod of length 2a is free to rotate in a vertical plane

Last updated: 6/8/2023

A rod of length 2a is free to rotate in a vertical plane about a horizontal axis O passing through its midpoint A long straight horizontal wire is on the same plane and is carrying a constant current i as shown in figure At initial moment of time the rod is horizontal and starts to rotate with constant angular velocity w calculate emf induced in the rod as a function of time Okw