Common
Counter-electromotive force
Voltage that opposes the change in current that induced it
Counter-electromotive force
In electromechanics, the counter-electromotive force (also called counter EMF, CEMF or back EMF), is the opposing electromotive force (EMF) caused by a changing current. The changing current leads to a changing magnetic field, and hence induces an EMF in the circuit by Faraday's law of induction.
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