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If relative permeability of iron is 2000...

If relative permeability of iron is 2000,its absolute permeability is SI unit is

A

`8pi xx 10^(-4)`

B

`8pi xx 10^(-3)`

C

`800//pi`

D

`(5xx10^(9))//pi`

Text Solution

Verified by Experts

The correct Answer is:
A
`mu_(r)=2000,mu=?`
`mu_(r)=(mu)/(mu_(0))`
`therefore mu=mu_(r)mu_(0)`
`=2000xx10^(-4)Wb//Am`
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