Two long, straight wires are parallel and 20 cm apart. One carries a current of 2.2 A, the other a current of 5.9 A. (a) If the two currents flow in opposite directions, what is the magnitude (in N/m) and direction of the force per unit length of one wire on the other

Explanation:

Given

Current in the first wire

Current in the second wire

wires are apart

Force per unit length between the current-carrying wires is

Force exerted  by the wires is the same

Put the values

This force will be repulsive in nature as the current is flowing opposite

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