the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
双语例句
It is electromotive force that drives electrons through the circuit. 是电动势驱使电子沿电路运动。
The force constant and its associated back-EMF constant of a VCM can be highly nonlinear with the mechanical structure. 在音圈马达中，由于其机械结构及磁路架构，力常数及反抗电动势常数呈现高度非线性之特性。
