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| A '''ferromagnet''' is a piece of ] material such as ] containing tiny crystals, called ''domains'', that have been aligned by an external magnetic field from another permanent ] or ] so that the piece itself becomes a permanent magnet. The name derives from the ] ''ferrum'', meaning iron. | A '''ferromagnet''' is a piece of ] material such as ] containing tiny crystals, called ''domains'', that have been aligned by an external ] from another permanent ] or ] so that the piece itself becomes a permanent magnet. The name derives from the ] ''ferrum'', meaning iron. | ||
Revision as of 04:49, 3 January 2003
A ferromagnet is a piece of ferromagnetic material such as iron containing tiny crystals, called domains, that have been aligned by an external magnetic field from another permanent magnet or electromagnet so that the piece itself becomes a permanent magnet. The name derives from the Latin ferrum, meaning iron.