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The susceptibility of annealed iron at s...

The susceptibility of annealed iron at saturation is 5500. Find the permeability of annealed iron at saturation.

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Data: `X_(m) = 5500, mu_(0) = 4pi xx 10^(-7) T.m//S`
Permeability, `mu = mu_(0)(1+ X_(m))`
`therefore` the permeability of annealed iron at saturation is
`=(4 xx 3.142 xx 10^(-7))(1+5500) = (4 xx 3.142 xx 5.501 xx 10^(-4))`
`= 6.914 xx 10^(-3) T.m//A`
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