Consider the following statements:
The speed of a dc motor can be controlled by the variation of
- armature voltage.
- field current.
- armature circuit resistance.
- angle of brush shift.
Which of the statements given above are correct?
A. 1, 2, 3.
B. 2, 3, 4.
C. 1, 3, 4.
D. 1, 2, 4.
Show Answer
Answer: A
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