The field due to a wire of n turns and radius r which

Last updated: 6/26/2023

The field due to a wire of n turns and radius r which carries a current I is measured on the axis of the coil at a small distance h from the center of the coil This is smaller than the field at the center by the fraction 1 3 3h IN MIN 2 3r 2h 2 4 2 h 2 3 2 3 3 2 r 3h