The armature of D.C. generator is laminated to_______________?
Correct answer: D. reduce eddy current loss
- A. reduce the bulk
- B. provide the bulk
- C. insulate the core
- D. reduce eddy current loss
Explanation
Laminating the armature core breaks up circulating paths for induced currents, greatly reducing eddy-current loss. The laminations are insulated from one another, but insulation is a means of achieving this loss reduction, not the main purpose stated here.
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