DC Motors
Which one of the following is not the function of pole shoes in a D.C. machine?

To spread out flux for better uniformity
To reduce eddy current loss
To support the field coils
To reduce the reluctance of the magnetic path

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DC Motors
The speed of a dc motor is

Directly proportional to flux per pole
inversely proportional to applied voltage
None of the listed here
inversely proportional to flux per pole

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