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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > 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 B in the the positive y direction. Calculate the magnitude and direction of the torque τ and the value of the potential energy U, when the coil is oriented as shown in parts (a) through (d) of Fig.

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 B in the the positive y direction. Calculate the magnitude and direction of the torque τ and the value of the potential energy U, when the coil is oriented as shown in parts (a) through (d) of Fig.

find the resultant magnetic force and torque about C and P. In the figure