A device that reverses magnetic field polarity to keep a dc motor rotating is:
A. A solenoid.
B. An armature coil.
C. A commutator.
D. A field coil.
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Answer: C
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A device that reverses magnetic field polarity to keep a dc motor rotating is:
A. A solenoid.
B. An armature coil.
C. A commutator.
D. A field coil.
Answer: C
Share your understanding of this question with the correct explanation.