Silicon percentage in the silicon steel used for electrical appliances/equipments is_________________?
Correct answer: C. 3-4
- A. 0.3-0.4
- B. 12-14
- C. 3-4
- D. 20-25
Explanation
Electrical silicon steel generally contains about 3 to 4% silicon, which increases electrical resistivity and reduces eddy-current losses. The much higher percentages listed would make the steel excessively brittle and difficult to process.
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