three long wires hang vertically. the distance between wire 1 and 2 is 20 cm. On the left, wire 1 carries an upward current of 1.4 A. To the right, wire 2 carries a downward current of 4.40 A. Wire 3 is located such that when it carries a certain current, each wire experiences no net force. What is the position of wire 3? What is the magnitude and direction of the current in wire 3?