If the magnetizing field on a ferromagnetic material is increased, its permeability
A
Decreased
B
Increased
C
Is unaffected
D
May be increased or decreased
Medium
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Updated on : 2022-09-05
Solution
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Correct option is A)
The magnetic permeability of a substance is defined as
μ=HB
where B is the established magnetic field inside the material,
H is the applied external magnetic field.
When the external applied magnetic field H is increased, the established magnetic field for a ferromagnetic material remains the same. Thus the magnetic permeability decreases.