The counter-emf of a motor is alwaysslightly less than the applied armature volt-age. Explain.Name two methods that are used to varythe speed of a de motor.Explain why the armature current of a shuntmotor decreases as the motor accelerates.

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Answered: The counter-emf of a motor is always…

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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The counter-emf of a motor is always slightly less than the applied armature volt- age. Explain. Name two methods that are used to vary the speed of a de motor. Explain why the armature current of a shunt motor decreases as the motor accelerates.