| 单词 | bar magnet |
| 释义 | > as lemmasbar magnet bar magnet n. a magnet in the form of a straight bar. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electric polarization > [noun] > polarized material bar magnet1821 electret1885 the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > magnet bar magnet1821 electromagnet1821 tension magnet1891 growler1922 the world > matter > physics > electromagnetic radiation > magnetism > magnetic devices or materials > [noun] > a magnet > of specific shape terrella1613 horseshoe magnet1785 bar magnet1821 U-magnet1888 1821 R. Phillips Let. 12 Sept. in M. Faraday Corr. (1991) I. 223 I think the analogy between the helix & common bar magnet far stronger than before. 1894 S. R. Bottone Electr. Instr. Making (ed. 6) 156 A bar-magnet, around one pole of which is coiled about a hundred feet of..copper wire. 1992 Prediction May 20/2 The simple bar magnet analogy is a good expression of the dipole form of Earth's magnetism. < as lemmas |
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