Question

What is the magnetic dipole moment of a current-carrying coil?

Answer 1

The magnetic dipole moment of a coil is \[[\vec{\mu}=NIA\], \[\hat{\vec{n}}]\], where [N] is the number of turns, [I] is the current, and [A] is the area of each turn. Its direction is normal to the coil, given by the right-hand rule.