V2EX electric current

Electric Current

释义 Definition(中文)

electric current电流,指电荷(通常是电子)在导体或电路中有方向的流动。电流大小常用单位安培(A)表示。常见类型包括直流(DC)交流(AC)

例句 Examples(英/中)

Electric current flows through the wire.
电流通过导线流动。

When electric current passes through a resistor, it generates heat, which is why the device can warm up during use.
当电流通过电阻时会产生热量,这也是设备在使用过程中可能变热的原因。

发音 Pronunciation(IPA)

/lktrk krnt/

词源 Etymology(中文)

electric 来自希腊语 ēlektron(意为“琥珀”),因为古人发现琥珀摩擦后会产生静电现象;current 来自拉丁语 currere(“奔跑、流动”),引申为“水流/流动”。合在一起,electric current 字面意思就是“电的流动”,对应中文“电流”。

相关词 Related Words

文学与经典著作中的用例 Literary Works(举例)

  • The Feynman Lectures on Physics(《费曼物理学讲义》)
  • Introduction to Electrodynamics(David J. Griffiths,《电动力学导论》)
  • Electricity and Magnetism(Edward M. Purcell,《电与磁》)
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