Activity 5: Problem Solving Directions: Solve the following problems systematically. Use another sheet of paper for your solution. A. Magnetic force on a current-carrying wire 7.5 en 1. A copper is placed in the center of an air gap between two magnetic poles, as shown in the figure. The field is confined to the gap and has a strength of 1.6 T a. Determine the force on the wire when the switch is open. b. Determine the force on the wire when the switch is closed. 2. A 15 A current carrying wire has a length of 27 cm in a magnetic field of 0.79 T. Find the force on the wire when it makes the following angles with the magnetic field lines of: a. 90 , b. 45 , c. 180, d. 0 3. A wire that is 40 cm long is parallel to a 0.67-T uniform magnetic field. There is 5.6 A current through the wire. How much force acts on the wire