1. When is the counter EMF at a minimum?When the field current is at a maximumWhen the motor armature is not rotatingWhen the current applied to the motor is at fullload.When the motor current is at a minimum

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Engineering

Electrical Engineering

1. When is the counter EMF at a minimum?

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter43: About Dc Motors

Section: Chapter Questions

Problem 1SQ

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Question

1. When is the counter EMF at a minimum?
When the field current is at a maximum
When the motor armature is not rotating
When the current applied to the motor is at full
load.
When the motor current is at a minimum

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