Question
The material suitable for making electromagnets should have:
✓
Answer
- High retentivity and low coercivity.
An electromagnet is necessary for the material that even if the current is turned off, the material losses its magnetic field. So, it should be made from such a material that its retentivity is very high. And there must be enough coercion force for the material which can restore its pre-magnetization state. For that its coercivity should be as minimum as possible.
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