Silicon steel is used in electrical machines because it has_____________?
Correct answer: C. low hysteresis loss
- A. low coercivity
- B. low retentivity
- C. low hysteresis loss
- D. high coercivity
Explanation
Silicon steel has a narrow hysteresis loop, resulting in low hysteresis loss when subjected to repeated magnetisation. Low coercivity contributes to this property, but low hysteresis loss is the direct reason for its use.
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