The speed of a D.C. motor can be varied by varying
A. field current
B. applied voltage
C. resistance in series with armature
D. any of the above
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Answer: D
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The speed of a D.C. motor can be varied by varying
A. field current
B. applied voltage
C. resistance in series with armature
D. any of the above
Answer: D
Share your understanding of this question with the correct explanation.