A linear magnetic material has relative permeability μᵣ=0.9996. Its magnetic susceptibility and magnetic nature are respectively:
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A linear magnetic material has relative permeability μᵣ=0.9996. Its magnetic susceptibility and magnetic nature are respectively:

G1 Physics · Accepted Answer

For a linear magnetic material, μᵣ = 1 + χₘ. Hence, χₘ = μᵣ-1 = 0.9996-1 = -0.0004 = -4×10⁻⁴. A small negative susceptibility corresponds to a diamagnetic substance. Therefore the material is diamagnetic with χₘ = -4×10⁻⁴.