A simple electric motor comprises of a rectangular coil of wire which rotates on a longitudinal axle in the magnetic field of 0.50 T. The coil measures 10 cm x 20 cm; it consists of 40 turns of wire and the current in the wire is around 8.0 A. Determine the average value of the torque over an entire rotation? When this motor rotates at the rate of 50 rev/s; determine the average horsepower which it delivers to its axle?