Question 1066 of 790 · California General Electrician Exam
Which material is best suited for the core of an electromagnet because it magnetizes easily and has high permeability?
Exactly one answer is correct.
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Correct answer to question 1066
- B: Soft iron
Explanation
Soft iron has high permeability and low retentivity, so it concentrates magnetic flux strongly and loses most of its magnetism when current stops. Copper, aluminum and brass are nonmagnetic.
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