permanent magnet

noun

Definition of permanent magnet

: a magnet that retains its magnetism after removal of the magnetizing force

Examples of permanent magnet in a Sentence

Recent Examples on the Web In permanent magnet motors, magnets attached to the edge of a spinning rotor produce a magnetic field that is attracted to the opposite poles on the spinning field. Margaret Osborne, Smithsonian Magazine, 11 Aug. 2022 This in many ways is simpler and offers many advantages over the induction and permanent magnet motors currently in the electric vehicles. David Blekhman, Forbes, 6 July 2022 That’s what a permanent magnet is — a bunch of little superconducting loops, one in each atom. Sumeet Kulkarni, Los Angeles Times, 2 July 2022 The performance/price ratio of the Tesla Model 3 and its permanent magnet synchronous reluctance motor contributed to its high unit sales – about three times that of the second bestselling EV in 2019. Peter Cohan, Forbes, 19 May 2022 First, more costly raw rare earth materials upstream in the supply chain can weed out inefficient downstream firms, like permanent magnet producers that are unable to absorb the higher prices. Mary Hui, Quartz, 7 Mar. 2022 The first is with a permanent magnet, like those things that stick to your refrigerator door. Rhett Allain, Wired, 31 Dec. 2021 In a sample of pure iron, the atoms would all align magnetically in the same direction and make a permanent magnet. Melanie Fine, Forbes, 21 Oct. 2021 Today, the NdFeB magnet accounts for the majority of global rare earth permanent magnet production. Mary Hui, Quartz, 14 May 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'permanent magnet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of permanent magnet

1882, in the meaning defined above

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Time Traveler for permanent magnet

Time Traveler

The first known use of permanent magnet was in 1882

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Dictionary Entries Near permanent magnet

permanently

permanent magnet

permanent magnetism

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Statistics for permanent magnet

Last Updated

16 Aug 2022

Cite this Entry

“Permanent magnet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permanent%20magnet. Accessed 2 Oct. 2022.

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More from Merriam-Webster on permanent magnet

Britannica.com: Encyclopedia article about permanent magnet

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