In a rotary converter armature currents are______________?
Correct answer: C. partly a.c. and partly d.c.
- A. d.c. only
- B. a.c. only
- C. partly a.c. and partly d.c.
Explanation
The armature conductors carry alternating currents in the armature winding, while the commutator makes the external DC current unidirectional. Thus, the armature current is described as partly AC and partly DC.
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