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Please answer question 11 fast...the given in my book is option 1..

Please answer question 11 fast...the given in my book is option 1..

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Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
Electromagnets are made of soft iron because:Soft iron has high retentivity- When the magnetising field is reduced to zero, soft iron retains magnetisation.and Low coercive force-To demagnetise the soft iron, a small force is required

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