A magnet in which the magnetic force is produced by passing an electric current; spec. a piece of metal (typically soft iron) enclosed within a wire…
单词 | θ78105 |
释义 | the world > matter > physics > electromagnetic radiation > magnetism > magnetic devices or materials > [noun] > a magnet > electromagnet (2) electromagnet1821 A magnet in which the magnetic force is produced by passing an electric current; spec. a piece of metal (typically soft iron) enclosed within a wire… Subcategories:— core of (1) |
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