Please answer question 11 fast...the given in my book is option 1..
Vaishali , 7 Years ago
Grade 12th pass
Magnetism> Please answer question 11 fast...the give...
1 Answers
Arun
Last Activity: 7 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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