1. The maximum power developed in a synchronous motor occurs at a coupling angle of
2. When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor
3. The speed of a synchronous motor
4. In which of the following motors the stator and rotor magnetic field rotate at the same speed ?
5. In a synchronous motor, the breakdown torque is
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