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When a piece of a ferromagnetic substanc...

When a piece of a ferromagnetic substance is put in a uniform magnetic field, the flux density inside it is four times the flux density away from the piece. The magnetic permeability of the material is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
Given, B=`4B_(0)`
`(B)/B_(0)=4Rightarrow mu,=4 " " [mu_(r)=(B)/(B_(0))]`
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