answer:
Explanation:
Interaction of a Current Loop with a Magnetic Field The effects due to the interaction of a current-carrying loop with a magnetic field have many applications, some as common as the electric motor. This problem illustrates the basic principles of this interaction. Consider a current I that flows in a plane rectangular current loop with height a = 4.00 cm and horizontal sides b = 2.00 cm . (Figure 1) The loop is placed into a uniform magnetic field B→ in such a way that the sides of length a are perpendicular to B→, and there is an angle θ between the sides of length b and B→, as shown in the figures. (Figure 2) Part A Will the interaction of the current through the loop with the magnetic field cause the loop to rotate? Yes, the net torque acting on the loop is negative and tends to rotate the loop in the direction of decreasing angle θ (clockwise). Yes, the net torque acting on the loop is positive and tends to rotate the loop in the direction of increasing angle θ (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. Part B Assume that the current flowing into the loop is 0.500 A . If the magnitude of the magnetic field is 0.300 T , what is τ, 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. τ = N⋅m
