Magnetic susceptibility & permeability | Magnetism & matter | Physics | Khan Academy

Magnetic susceptibility is a measure of how readily materials tend to get magnetized. Diamagnets have a small negative susceptibility while paramagnets have a small positive susceptibility. Ferromagnets have a large susceptibility.
Relative permeability is a measure of how readily materials allow the field lines to pass through them, compared to vacuum.

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Created by Mahesh Shenoy