Question
Steel is preferred for making permanent magnets whereas soft iron is preferred for making electromagnets. Give one reason.
✓
Answer
Steel has Higher retentivity/Higher coercivity/Higher permeability/Large area of (B-H curve).
Alternate Answer
Soft iron has lower retentivity/Lower coercivity/Lower permeability/Smaller area of (B-H curve).
Alternate Answer
Soft iron has lower retentivity/Lower coercivity/Lower permeability/Smaller area of (B-H curve).
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