Question

Torque on a magnetic dipole in a uniform field derivation

Answer 1

Consider a short magnetic dipole (or bar magnet) of length 2l placed in auniform a magnetic field of strength in such a way that its magnetic dipole moment makes an angle θ with the direction of The pole strength ofmagnetic south and north poles are − qm and + qm respectively. Its direction is from S pole to N-pole.

Answer 2

this is the correct answer