Linear soft ferromagnet - opracowanie

Linear soft ferromagnet In polycrystalline ferromagnets and for small values of internal field strength we may
write to a reasonable level of approximation
M= χm H (5.10)
where χm is a dimensionless parameter called the magnetic susceptibility. The same
relation may be expressed in the alternative form
B = μ0(1 + χm)H (5.11)
Introducing the relative magnetic permeability μr = (1+χm) we may write
B = μrμ0 H (5.12)
ie
B = μH (5.13)
where μ is called the magnetic permeability and has the same units as μ0 i.e. has units
of Hm−1.
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