Magnetization, susceptibility, and relative permeability (χ = M/H, μ_r = 1+χ, B = μ₀(H+M))

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χ = M/H, μ_r = 1+χ, B = μ₀(H+M)

What each symbol means

SymbolWhat it stands for
HMagnetizing field (A/m)
MMagnetization
χMagnetic susceptibility

When to use this

Linear isotropic medium; weak M linear in H.