Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

I have read that soft iron is suitable for making a permanent magnet. Because it is required for permanent magnet to have high coercivity and high retentivity.

Same text also said earlier that soft iron has low coercivity and low retentivity and is very useful in making solenoids cores.

What is the actual answer and also the reason?

share|improve this question

1 Answer 1

Soft iron has a high retentivity (or remanence) but a low coercivity. Therefore it is not a suitable material for making permanent magnets

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.