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  • coulomb
    coulomb
    noun
    the standard unit of quantity of electricity in the International System of Units (SI), equal to the quantity of charge transferred in one second across a conductor in which there is a constant current of one ampere. C
  • Coulomb
    Coulomb
    noun
    Charles Augustin de 1736–1806, French physicist and inventor.

coulomb

1 American  
[koo-lom, -lohm, koo-lom, -lohm] / ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm /

noun

  1. Electricity. the standard unit of quantity of electricity in the International System of Units (SI), equal to the quantity of charge transferred in one second across a conductor in which there is a constant current of one ampere. C


Coulomb 2 American  
[koo-lom, -lohm, koo-lom, -lohm, koo-lawn] / ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm, kuˈlɔ̃ /

noun

  1. Charles Augustin de 1736–1806, French physicist and inventor.


Coulomb 1 British  
/ kulɔ̃, ˈkuːlɒm /

noun

  1. Charles Augustin de (ʃarl oɡystɛ̃ də). 1736–1806, French physicist: made many discoveries in the field of electricity and magnetism

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

coulomb 2 British  
/ ˈkuːlɒm /

noun

  1. C. the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Coulomb 1 Scientific  
  1. French physicist who was a pioneer in the study of magnetism and electricity. He is best known for the formulation of Coulomb's law, which he developed as a result of his investigations of Joseph Priestley's work on electrical repulsion. Coulomb also established a law governing the attraction and repulsion of magnetic poles. The coulomb unit of electric charge is named for him.


coulomb 2 Scientific  
/ ko̅o̅′lŏm′,ko̅o̅′lōm′ /
  1. The SI derived unit used to measure electric charge. One coulomb is equal to the quantity of charge that passes through a cross-section of a conductor in one second, given a current of one ampere.


Etymology

Origin of coulomb

First recorded in 1880–85; after Coulomb


Vocabulary lists containing coulomb

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

An ampere is the flow of one coulomb through an area in one second.

From Textbooks ● Aug. 12, 2015

This also provides us with a method for measuring the coulomb.

From Textbooks ● Aug. 12, 2015

For both the ampere and the coulomb, the method of measuring force between conductors is the most accurate in practice.

From Textbooks ● Aug. 12, 2015

Both marbles want to settle at the bottom of the bowl, but the coulomb repulsion causes them to come to rest on opposite sides, each a bit up the slope.

From Scientific American ● Oct. 9, 2012

The capacity of a condenser which would contain a charge of one coulomb under one volt pressure is the farad.

From Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications by Nehemiah Hawkins

This innovation allowed them to observe the Coulomb diamond, a key characteristic of quantum dots, providing insights into the behavior of electrons trapped inside.

From Science Daily ● Nov. 26, 2024

"The Coulomb diamond is like a fingerprint that helps identify the unique 'personality' of each quantum dot," points out Tomohiro Otsuka, an associate professor at Tohoku University and corresponding author of the paper.

From Science Daily ● Nov. 26, 2024

Now, in a new study in Nature Physics, Caltech researchers report detecting excitons that are not bound via Coulomb forces but rather by magnetism.

From Science Daily ● Oct. 5, 2023

One might say that screening makes the Coulomb force a short range force rather than long range.

From Textbooks ● Aug. 12, 2015

The red cliffs extend for four miles to the southward of Point Coulomb, and are then superseded by a low coast, composed alternately of rocky shores and sandy beaches.

From Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 by Phillip Parker King

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