4 Two long straight horizontal parallel wires one above the

Last updated: 6/14/2023

4 Two long straight horizontal parallel wires one above the other are separated by a distance 2a If the wires carry equal currents in opposite directions the magnitude of the magnetic induction in the plane of the wires at a distance a above the upper wire is 1 i 2 ui 2 A i i 2 4 i