many applications, some as common as the electric motor. This problem illustrates the basic principles of this interaction. Part B Assume that the loop is initially positioned at ( = 30 and the current flowing into the loop is 0.500 A . If the magnitude of the magnetic field is 0.300 T , what is T, the net torque about the vertical axis of the current loop due to the interaction of the current with the magnetic field? Express your answer in newton-meters. View Available Hint(s) T = 1.04x10 4 N . m Previous Answers Correct Correct answer is shown. Your answer 1.039-10-4 = 1.039x10 4 N . m was either rounded differently or used a different number of significant figures than required for this part. Part C What happens to the loop when it reaches the position for which 0 = 90, that is, when its horizontal sides of length b are perpendicular to B (see the figure)? (Figure 3) View Available Hint(s) The direction of rotation changes because the net torque acting on the loop causes the loop to rotate in a clockwise direction. The net torque acting on the loop is zero, but the loop continues to rotate in a counterclockwise direction. The net torque acting on the loop is zero; therefore it stops rotating. The net force acting on the loop is zero, so the loop must be in equilibrium. Previous Ar Correct Part D Now suppose that you change the initial angular position of the loop relative to B, and assume that the loop is placed in such a way that initially the angle between the sides of length b and B is 0 = 1209, as 4 of 4 shown in the figure. (Figure 4) Will the interaction of the current through the loop with the magnetic field cause the loop to rotate? > View Available Hint(s) (current coming up) Yes, the net torque acting on the loop is negative and tends to rotate the loop in the direction of decreasing angle 0 (clockwise). Yes, the net torque acting on the loop is positive and tends to rotate the loop in the direction of increasing angle @ (counterclockwise). No, the net torque acting on the loop is zero and the loop is in equilibrium. No, the net force acting on the loop is zero and the loop is in equilibrium. (current going down) Submit (view from above)