alleryStart learning →Electromagnet cores are made of soft iron because it has
Asmall permeability and high retentivity
Bsmall permeability and low retentivity
Clarge permeability and low retentivity
Dlarge permeability and high retentivity
Answer & Solution
Correct answer: C. large permeability and low retentivity
Large permeability gives strong fields, and low retentivity lets it demagnetize when current stops.
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