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Question
The susceptibility of annealed iron at saturation is 5500. Find the permeability of annealed iron at saturation.
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Solution
Susceptibility of annealed iron,
\[\chi=5500\]
The relation between permeability and susceptibility:-
Permeability, µ = µ0(1 + x)
µ = 4π × 10−7 (1 + 5500)
⇒ µ = 4 × 3.14 × 10−7 × 5501
⇒ µ = 69092.56 × 10−7
⇒ µ = 6.9 × 10−3
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