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  4. The material suitable for making electromagnets should have

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Q. The material suitable for making electromagnets should have

NTA AbhyasNTA Abhyas 2020Moving Charges and Magnetism

Solution:

Electromagnet should have a property to give magnetising and demagnetising action very fast with the change in the magnetising field, for this it should have very low coercivity, but with the increase in current field increases and to make a strong magnet, retentivity should be higher