英语词汇“back emf”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

noun

(Electrical engineering: Electrical power, Motor or generator)

Back EMF is the system in the coil of an electric motor that opposes the current flowing through the coil, when the armature rotates.

When the speed varies, the winding characteristics may fluctuate, resulting in variationof back EMF.

At high speeds the traction motor armatures are rotating rapidly and have a highback EMF.

Back EMF is the system in the coil of an electric motor that opposes the current flowing throughthe coil, when the armature rotates.

单词	back emf
释义	back emf in British English noun electrical engineering an electromagnetic force appearing in an inductive circuit in such a direction as to oppose any change of current in the circuit back EMF in Electrical Engineering (bæk i ɛm ɛf) or back electromotive force noun (Electrical engineering: Electrical power, Motor or generator) Back EMF is the system in the coil of an electric motor that opposes the current flowing through the coil, when the armature rotates. When the speed varies, the winding characteristics may fluctuate, resulting in variationof back EMF. At high speeds the traction motor armatures are rotating rapidly and have a highback EMF. Back EMF is the system in the coil of an electric motor that opposes the current flowing throughthe coil, when the armature rotates.
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back emf in British English