A circular loop of wire that has a mass and a constant
Chapter , Problem 78(choose chapter or problem)
A circular loop of wire that has a mass and a constant current is in a region with a uniform magnetic field. It is initially in equilibrium and its magnetic moment is aligned with the magnetic field. The loop is given a small angular displacement about an axis through its center and perpendicular to the magnetic field and then released. What is the period of the subsequent motion? (Assume that the only torque exerted on the loop is due to the magnetic field and that there are no other forces acting on the loop.)
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