Two long, straight wires are parallel and 10 cm apart.One carries a current of 2.0 A, the other a current of 5.0A. (a) If the tw
o currents flow in opposite directions, whatis the magnitude and direction of the force per unit lengthof one wire on the other? (b) What is the magnitude anddirection of the force per unit length if the currents flow inthe same direction?