Magnet

Magnetic potential of a magnetized material

In Coulomb gauge, the potential due to a magnetized magnet is given by

where is the magnetization, and and are the surface and volume bound current densities respectively given by

If additional free current is present, the principle of superposition may be used to combine the potentials due to free current and due to magnetization (i.e. bound current).

Derivation

Applying ^GE5

as required.

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