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单词 electric current
释义

electric current

noun
A flow of electricity; = current; the magnitude of such a flow.
  • The direction of flow of a current is conventionally taken as from positive to negative, which is the opposite direction from that in which electrons (which are negative) actually move as charge carriers..

Origin

Mid 18th century; earliest use found in Philosophical Transactions of the Royal Society of London.

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更新时间:2024/12/23 10:17:32