The field normal to the plane of a wire of N turns and radius r which – InterviewSolution

1.	The field normal to the plane of a wire of N turns and radius r which carries a current I is measured on the axis of coil at a small distance h from the centre of the coil.This is smallest than the field at the centre by the fraction?
Answer» The field normal to the plane of a wire of N turns and radius r which carries a current I is measured on the axis of coil at a small distance h from the centre of the coil.This is smallest than the field at the centre by the fraction?

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