Phrase
electric current
noun
电流
A flow of electric charge through a conductor, typically measured as the amount of charge passing a cross-section per unit time.
- 1.
A net unidirectional movement of electrons, or other charge carriers, caused by a potential difference.
由电位差引起的电子或其他载流子的净单向运动。
- 2.
The net charge that passes through some cross-section of a conducting material (in one direction), per unit time.
单位时间内通过导体某一横截面的净电荷量。
由电位差引起的电子或其他载流子的净单向运动。；单位时间内通过导体某一横截面的净电荷量。；[化] 电流
In use
An electric current flows through the wire when the circuit is closed.
We used an ammeter to measure the electric current in the circuit.
The electric current passing through the resistor generates heat.
electric current + verb (flow, pass, etc.)
在一般陈述中，electric current 前通常不加冠词。
Electric current flows through the circuit.
电流流过电路。
verb (generate, conduct, produce) + electric current
常见动词搭配，同样不加冠词。
The battery generates electric current.
电池产生电流。
a/an electric current
当指代特定的电流时，使用不定冠词。
Connections
Confusing words
- electricity
- 电 · 电流指电荷的定向流动，而电泛指电能或电力，范围更广。
- current
- 水流 · 电流指电荷流动，而水流指液体（如水）的流动，二者概念不同。
- voltage
- 电压 · 电流是电荷流动的速率，而电压是电势差，驱动电流流动。
Word family
- electricity
- 电；电力 · n.
- electrical
- 电的；电气的 · adj.
- electrically
- 用电地；在电学上 · adv.
Learner notes
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.