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A magnetising field of 5000 A//m produce...

A magnetising field of `5000 A//m` produces a magnetic flux of `5xx10^(-5)` weber in an iron rod. If the area of cross section of the rod is `0.5 cm^(2)`, then the permeability of the rod will be

A

`1xx10^(-3)`

B

`2xx10^(-4)`

C

`3xx10^(-5)`

D

`4xx10^(-6)`

Text Solution

Verified by Experts

The correct Answer is:
B
`phi_(B)=bar(B).bar(A)`
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