What is the back EMF of a dc motor?
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Answer : The armature may burn if the back e.m.f. of a D.C. motor vanishes suddenly.

Description : What is back EMF of synchronous motor?

Description : What is the back EMF of the motor?

Description : The back emf of synchronous motor depends on?

Answer : The back emf of synchronous motor depends on load angle.

Answer : The mechanical power developed by a shunt motor will be maximum when the ratio of back e.m.f. to applied voltage is 0.5.