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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A magnetic dipole is free to rotate in a uniform magnetic field. For what orientation of the magnet with respect to the fiel (a) torque is maximum? (b) potential energy is maximum? (c) rate of change of torque with deflection is maximum?

A magnetic dipole is free to rotate in a uniform magnetic field. For what orientation of the magnet with respect to the fiel (a) torque is maximum? (b) potential energy is maximum? (c) rate of change of torque with deflection is maximum?

Figure shows two small bar magnets having dipole moments M1 and M2 placed at separation r. Find the magnetic interaction energy of this system of dipoles for d<<r.