Which of the following losses are significantly reduced by laminating the core of a D.C. generator ?
Correct answer: B. Eddy current losses
- A. Hysteresis losses
- B. Eddy current losses
- C. Copper losses
- D. Windage losses
Explanation
Laminating the magnetic core increases the resistance of paths available for circulating currents, sharply reducing eddy-current loss. Hysteresis loss is reduced mainly by using a suitable magnetic material.
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