SOLUTION

A hysteresis motor is a single-phase cylindrical (non-salient pole type) synchronous induction motor. The amount of torque produced as a result of rotor magnetization is not as great as reluctance torque. But hysteresis torque is extremely steady in both amplitude and phase in spite of fluctuations in supply voltage. As a result of this, these motors are extremely popular in driving high-quality cassette players, compact disc players, record players, tape recorders, clocks, etc.