| 单词 | mmf |
| 释义 | > as lemmasm.m.f. m.m.f. n. (also M.M.F.) Physics magnetomotive force. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > magnetomotive force magnetomotive force1883 m.m.f.1893 1893 R. M. Walmsley Wormell's Electr. in Service of Man ii. 392 The number of lines..which a magnetomotive force (M.M.F.) can set up depends not only on its own magnitude but on the reluctance..of the path provided. 1962 Newnes Conc. Encycl. Electr. Engin. 467/1 The m.m.f. per metre length of path is H.., the value of H determining the magnetic flux density B = μH at the point, where μ..is the absolute permeability of the medium. 1987 E. H. J. Pallett Aircraft Electr. Syst. (ed. 3) i. 4/2 To counteract this, and for a given load on the generator, it is necessary to reduce the magnetomotive force (m.m.f.) of the interpoles. < as lemmas |
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