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The permeability of a metal is 0.125...

The permeability of a metal is `0.1256 TmA^(-1)` what is its relative permeability ?

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The correct Answer is:
B
Relative permeability
`mu_(R )=(mu)/(mu_(0))=(0.1256)/(4pixx10^(-7))=(0.1256)/(4xx3.14xx10^(-7))`
`=(1256xx10^(-4))/(12.56xx10^(-7))=10^(5)`
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