faraday
C2Pronunciation
UK
- /fˈærədˌeɪ/
US
- /ˈfærəˌdeɪ/
Description
- English scientist and inventor
- old unit of electric charge
- charge of one mole of electrons
- electromagnetism and induction
- shielding enclosure
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.
The word "Faraday" usually points back to Michael Faraday (1791-1867), one of the most important figures in the history of electricity and magnetism. He was an English scientist and inventor whose experiments on electromagnetic induction helped make electric generators, transformers, and motors possible. Because of that, his name often appears in discussions of physics, electrical engineering, and the history of science.
In a more technical sense, a *faraday is also an older unit in electrochemistry. It means the amount of electric charge carried by one mole of electrons, which is about 96,485 coulombs. This use is less common in general writing today, but it still appears in scientific explanations and older material. It should not be confused with the farad*, the SI unit for capacitance. The two terms sound similar because both were named after the same person, but they refer to different ideas.
Faraday's name also lives on in the term "Faraday cage," a conductive enclosure that helps block external electric fields and can reduce the effect of some electromagnetic interference. This idea is used in laboratories, electronics, and protective shielding. His work also reached into chemistry: he contributed to electrolysis, studied gases and materials, and discovered benzene. So depending on the context, "Faraday" may mean the scientist himself, an older unit of charge, or one of the famous concepts named after him.
Examples
- 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
Electrolytic cell
After ten minutes, the cell had delivered only half a faraday, so the metal layer was still thin.
- 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