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A magnetising field of 1500""(A)/(m) pro...

A magnetising field of `1500""(A)/(m)` produces a magnetic flux density of `0.48 Wb//m^(2) ` in a iron bar . Calculate permeability of iron bar used .

Text Solution

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`mu = (B)/(H) = (0.48)/( 1500)`
`= (48 xx 10 ^(-2))/( 15 xx 10 ^(2))`
` =(48)/(15) xx 10 ^(-4) (Wb)/(m ^(2)) xx (m)/(A)`
` = 3.2 xx 10 ^(-4) Wb//mA`
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