In which of the following motors the stator and rotor magnetic field rotate at the same speed?
Correct answer: B. Synchronous motor
- A. Universal motor
- B. Synchronous motor
- C. Induction motor
- D. Reluctance motorElectromechanical Devices
Explanation
In a synchronous motor, the rotor magnetic field locks with the stator's rotating field, so both rotate at synchronous speed. An induction motor requires slip, so its rotor field does not maintain this same relationship in the same way.
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