Two long, straight wires are parallel and 15 cm apart. One carries a current of 2.8 A, the other a current of 5.6 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? magnitude N/m direction ---Select--- (b) What is the magnitude (in N/m) and direction of the force per unit length if the currents flow in the same direction? magnitude N/m direction ---Select--

Two long, straight wires are parallel and 15 cm apart. One carries a current of 2.8 A, the other a current of 5.6 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? magnitude N/m direction ---Select--- (b) What is the magnitude (in N/m) and direction of the force per unit length if the currents flow in the same direction? magnitude N/m direction ---Select--