What is the relative permeability of an air-core inductor, if its sel – McqOptions

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1.	What is the relative permeability of an air-core inductor, if its self-inductance increases from 0.5 mH to 50 mH due to the introduction of an iron core into it?
A.	100
B.	0.1
C.	10000
D.	0.0001
Answer» B. 0.1

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