Magnetostatics MOC

Perfect magnetic dipole

A perfect magnetic dipole with magnetic dipole moment is an idealized current distribution in magnetostatics whose Multipole expansion of the magnetostatic potential has all terms vanish except for the dipole term. Thus the potential in Coulomb gauge due to a perfect dipole located at is

and given a continuous distribution of perfect dipoles localized to

A perfect dipole arises by considering a physical dipole in the limit as and so that remains fixed.

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