Physics formula

in magnetic materials, sources of magnetization are the electrons' orbital angular motion around the nucleus, and the electrons' intrinsic magnetic moment (see Electron magnetic dipole moment). The other potential sources of magnetism are the nuclear magnetic moments of the nuclei in the material which are typically thousands of times smaller than the electrons' magnetic moments, so they are negligible in the context of the magnetization of materials.

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Magnetostatics-Bar Magnet -

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magnet formula -

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# Flux density at a distance from a single rectangular magnet
# Flux density at a distance from a single rod magnet
# Flux density at a distance from a single steel-backed rectangular magnet
# Flux density at a distance from a single steel-backed rod magnet
# Flux density at a distance from a single magnet with a central hole
# Flux density at a distance along the axis between a pair of rectangular magnets
# Flux density at a distance along the axis between a pair of rod magnets
# Flux density between a pair of rectangular magnets with steel path
# Flux density between a pair of rod magnets with steel path
# Force at a distance from a single magnet
# Flux density vs magnetizing force for mild steel material
# Current required to achieve a given flux density in the gap of a 3-leg circuit
complete with ilustration.