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faraday

C2
noun

Pronunciation

UK

  • /fˈærədˌeɪ/

US

  • /ˈfærəˌdeɪ/

Description

Michael Faraday was a 19th-century English scientist whose work changed how people understand electricity and magnetism. In many contexts, "Faraday" means the scientist himself, especially when people talk about electromagnetic induction, early electric motors, generators, or the Faraday cage. In electrochemistry, a *faraday can also mean a unit of electric charge: the charge carried by one mole of electrons. It should not be confused with the farad*, which is a different unit used for capacitance.

Faraday was largely self-taught and known for careful, practical experiments. His ideas helped shape modern electrical technology, and his name still appears in science, engineering, and everyday discussion of electric shielding.

Examples

  1. 1

    Electrochemistry unit

    The students calculated that the reaction needed almost one faraday of charge to produce the expected amount of copper.

    • Domain

      a faraday

      a unit of electric charge used in chemistry

  2. 2

    Electrolytic cell

    After ten minutes, the cell had delivered only half a faraday, so the metal layer was still thin.

  3. 3

    Older papers

    In older electrochemistry papers, the total charge is often reported in faradays instead of coulombs.

Forms and spellings

1 form open this card.

Main spelling

  • faradaynoun