Why do we use steel for making permanent magnets
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Steel have high coercivity.
High coercivity ensures that magnetism in the material stays for long time.
High coercivity ensures that magnetism in the material stays for long time.
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The material which we choose for making magnets should have high coerectivity. The high coerectivity ensures that the magnetism in the material stays for a long time. As steel has highly coelectrivity, therefore this is used for making permanent magnets.
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