Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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X1. The magnetic strength of the field poles on a permanent magnet DC motor cannot be varied.
a) true b) false
X2. The________ of a permanent magnet DC motor can be changed.
a) speed b) direction of rotation c) both "a" and "b" d) neither "a" nor "b"
X3. A "printed-circuit motor" is another term for a_________ motor.
a) DC servo-disc b) DC servomotor c) DC brushless d) none of the above
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