| 单词 | back e.m.f. |
| 释义 | back e.m.f. An electromotive force that opposes the main current flow in a circuit. For example, when the coils of the armature in an electric motor are rotated a back e.m.f. is generated in these coils by their interaction with the field magnet (see inductance). Also, in an electric cell, polarization causes a back e.m.f. to be set up, in this case by chemical means |
| 随便看 |
|
物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。