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A long thin wire carrying a current 'I' lies parallel to and at a distance 'd' from a semi-infinite slab of iron d of

A long thin wire carrying a current 'I' lies parallel to and at a distance 'd' from a semi-infinite slab of iron d of infinite permeability u= as shown in the figure below. The magnetic field at = 00 TAXRE 111 *** *** *** y d 440 I 2 3nd I AHOI(-2) 3nd 201 2 3nd 0 24 (-2) 3nd is

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