A sample of cast iron exhibits a magneti...

A sample of cast iron exhibits a magnetic field B = 0.5 T , when intensity of magnetising field (H) is `10""(A)/(m)`.
(i) Find permeability of iron .
(ii) What would be the field in air for this value of H ?

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A sample of cast iron exhibits a magnetic field B = 0.5 T , when intensity of magnetising field (H) is `10""(A)/(m)`. (i) Find permeability of iron . (ii) What would be the field in air for this value of H ?

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A sample of cast iron exhibits a magnetic field B = 0.5 T , when intensity of magnetising field (H) is `10""(A)/(m)`.
(i) Find permeability of iron .
(ii) What would be the field in air for this value of H ?