A current I flows in a plane rectangular current loop with height w and horizontal sides b. The loop is placed into a uniform magnetic field B in such a way that the sides of length w are perpendicular to B (Figure 1), and there is an angle O between the sides of length b and B (Figure 2 Learning Goal: To understand the origin of the torque on a current loop Calculate 7, the magnitude of the torque about the vertical axis of the current loop due to the interaction of the current through the loop with the due to the magnetic forces on the current-carrying wires magnetic field. This problem will show you how to calculate the torque Express the magnitude of the torque in terms of the given variables. You will need a trigonomeric function [e.g., sin(@) or cos(0)]. Use B for the magnitude of the magnetic field. Figure