. In a synchronous motor which loss varies with load ?
Correct answer: C. Copper loss
- A. Windage loss
- B. Bearing friction loss
- C. Copper loss
- D. Core loss
Explanation
Armature copper loss varies with load because it is proportional to the square of armature current, I²R. Windage, bearing friction, and core losses are approximately constant at constant speed and voltage.
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