A circular coil with area A and N turns is free to rotate about a diameter that coincides with
Channel: Doubtnut
Date: 02/11/2021

A circular coil with area A and N turns is free to rotate about a diameter that coincides with the x-axis. Current I is circulating in the coil. There is a uniform magnetic field `vec B` in the the positive y direction. Calculate the magnitude and direction of the torque `vec tau` and the value of the potential energy U, when the coil is oriented as shown in parts (a) through (d) of Fig. 1.79.