Torque on a magnetic dipole (current loop) of moment m placed in a uniform field B at angle θ is:

1. τ = m × B; magnitude = m B sinθ. 2. m for a planar loop = N I A, perpendicular to the plane (right-hand rule). 3. Analogous to electric dipole in electric field. _Source: NCERT Class 12 Physics Ch 4 §4.9 Torque on a Current Loop_