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In all rotating electrical machine, electrical torque is developed when relative speed between stator field and rotor field is ____________(a) zero(b) equal to rotor speed(c) equal and opposite to rotor speed(d) dependent upon the type of electrical machineThe question was asked by my college professor while I was bunking the class.This intriguing question originated from Production of Torque in Non-Salient Pole Machines topic in section Synchronous Machines of Electrical Machines |
Answer» Right choice is (a) zero |
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