CBSE Class 12-science Answered
Why do we prefer steel or alnico for making permanent magnets?
Asked by Topperlearning User | 01 Jun, 2015, 01:24: PM
Expert Answer
The material which we choose for making magnet should have high coercivity. The high coercivity ensures that magnetism in the material stays for a longer time. As steel and alnico have high coercivity, therefore, they are used for making permanent magnets.
Answered by | 01 Jun, 2015, 03:24: PM
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