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why is iron used to make temporary magnets? Answered


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steveastrouk (author)2010-02-03

Iron is generally magnetically "soft", that is, the magnetic domains, whilst they can orientate themselves to a magnetic field, will not retain that alignment when the field is removed, so iron "loses" its magnetic coercivity as soon as the external field is removed.

Steels don't.

Steve

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Acepilot42 (author)2010-02-03

iron is readily available and is naturally magnetic

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