In D.C. generators on no-load, the air gap flux distribution in space is______________?
Correct answer: D. flat topped
- A. sinusoidal
- B. triangular
- C. pulsating
- D. flat topped
Explanation
At no load, the pole faces produce an approximately uniform flux density over much of the pole arc. Consequently, the air-gap flux distribution is described as flat-topped rather than sinusoidal.
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