A) decreased
B) increased
C) is unaffected
D) may be increased or decreased
Correct Answer: A
Solution :
Magnetic permeability of substance \[=-|B||A|\frac{d\cos \theta }{dt}=|B||A|\sin \theta .\omega \]where, H is the magnetizing or magnetic field. So, the magnetizing field on a ferromagnetic material is increasing, its permeability decreased.You need to login to perform this action.
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