Mutual inductance of two parallel straight wires There are two cases to consider: Current travels in the same direction in each wire, and current travels in opposing directions in the wires. Currents in the wires need not be equal, though they often are, as in the case of a complete circuit, where one wire is the source and the other the return.
Mutual inductance of two parallel straight wires There are two cases to consider Current travels in the same direction in each w,ire, and current travels in opposing directions in the wires. Currents in the wire:s need not be equal though they often are, as in the case of a complete circuit, where one wire is the source and the other the return.