A bar magnet oscillates in a uniform magnetic field with a potential energy of U. It is cut perpendicular to its length into two equal parts. These two pieces are then stacked one over another with li

Question

A bar magnet oscillates in a uniform magnetic field with a potential energy of U. It is cut perpendicular to its length into two equal parts. These two pieces are then stacked one over another with like poles together. The potential energy of the new system (in the same magnetic field and at the sam

Accepted Answer

Answer: U — Magnetic moment remains same after stacking ⇒ U = −MBcosθ unchanged.

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