Which of the following loss in a D.C. generator varies significantly with the load current ?
Correct answer: C. Armature copper loss
- A. Field copper loss
- B. Windage loss
- C. Armature copper loss
- D. None of the above
Explanation
Armature copper loss is Iₐ²Rₐ, so it changes substantially as load current changes. Windage loss is nearly constant, while field copper loss is usually constant for a fixed field supply.
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