V2EX faraday

Faraday

释义 Definition

法拉第(F):电容单位,表示电容器在两极间电势差为 1 伏时所储存的电荷量为 1 库仑的电容大小。该单位以英国科学家迈克尔法拉第(Michael Faraday)命名。
(注:在化学中也常见“Faraday constant / 法拉第常数”,指每摩尔电子所带的电荷量;这是相关但不同的概念。)

发音 Pronunciation (IPA)

/frde/

例句 Examples

A capacitor of one faraday is very large.
一法拉第的电容器非常大。

In circuit design, engineers often use microfarads rather than faradays because a full faraday of capacitance is rarely practical.
在电路设计中,工程师通常使用微法(μF)而不是法拉第(F),因为达到一整法拉第的电容在实际中很少可行。

词源 Etymology

Faraday 来自英国物理学家与化学家 Michael Faraday 的姓氏。为纪念他在电磁学领域的重要贡献(如电磁感应等),后人将电容单位命名为 farad(法拉),日常也会看到与其同源的相关术语(如 Faraday constant 等)。

相关词 Related Words

文学与著作中的使用 Literary Works

  • A Treatise on Electricity and Magnetism(James Clerk Maxwell)讨论电磁学与相关单位体系时会出现与法拉第/法拉相关的术语。
  • Experimental Researches in Electricity(Michael Faraday)法拉第本人的电学研究论文集,后世单位命名与其贡献密切相关。
  • The Feynman Lectures on Physics(Richard P. Feynman 等)在电路与电学章节中常出现电容及其单位(如 farad)。
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