Q. Hysteresis motor is particularly useful for high-quality record players and tape- recorders because (Solved)
1. it revolves synchronously
2. it is not subject to any magnetic or mechanical vibrations
3. it can be easily manufactured in extremely small sizes of upto 1 W output
4. it develops hysteresis torque which is extremely steady both in amplitude and phase
- d. it develops hysteresis torque which is extremely steady both in amplitude and phase