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magnetic needle |
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magnetic needle a slender magnetized rod used in certain instruments, such as the magnetic compass, for indicating the direction of a magnetic field magnetic needle [mag′ned·ik ′nēd·əl] (electromagnetism) A bar magnet or collection of bar magnets which is hung so as to show the direction of the magnetic field. In particular, a slender bar magnet, pointed at both ends, that is pivoted or freely suspended in a magnetic compass. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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