Figure 28-45

Homework 28.49

Figure 28-45 shows a rectangular 20-turn coil of wire, of dimensions 10 cm by 5.0 cm. It carries a currrent of 0.10 A and is hinged along one long side. It is mounted in the xy plane, θ = 30o to the direction of a uniform magnetic field of magnitude 0.50 T. In unit vector notation, what is the torque acting on the coil about the hinge line?