A bar magnet is hung by a thin thread in a uniform horizontal magnetic field. Energy W is required to rotate it from equilibrium through 60°. Find the torque required to hold it at 60°.
Physics · Magnetism and matter · magnet in magnetic field, torque, potential energy, oscillation and magnetic moment
A bar magnet is hung by a thin thread in a uniform horizontal magnetic field. Energy W is required to rotate it from equilibrium through 60°. Find the torque required to hold it at 60°.
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