coulomb(redirected from Exacoulomb)
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n. Abbr. C
The basic unit of electric charge, equal to the quantity of charge transferred in one second by a steady current of one ampere, and equivalent to 6.2415 × 1018 elementary charges, where one elementary charge is the charge of a proton or the negative of the charge of an electron. A coulomb's value in the International System differs very slightly from that in the meter-kilogram-second-ampere system of units. See Table at measurement.
adj. also cou·lom·bic (ko͞o-lŏm′bĭk, -lōm′-)
Of or relating to the Coulomb force.
[After Charles Augustin de Coulomb.]
Coulomb(ˈkuːlɒm; French kulɔ̃)
(Biography) Charles Augustin de (ʃarl oɡystɛ̃ də). 1736–1806, French physicist: made many discoveries in the field of electricity and magnetism
(Units) the derived SI unit of electric charge; the quantity of electricity transported in one second by a current of 1 ampere. Symbol: C
[C19: named after Charles Augustin de Coulomb]
cou•lomb(ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm)
the SI unit of quantity of electricity, equal to the quantity of electric charge transferred in one second across a conductor in which there is a constant current of one ampere. Abbr.: C
[1880–85; after Coulomb]
Cou•lomb(ˈku lɒm, -loʊm, kuˈlɒm, -ˈloʊm)
Charles Augustin de, 1736–1806, French physicist and inventor.
A unit used to measure electric charge. One coulomb is equal to the quantity of charge that passes a point in an electric circuit in one second when a current of one ampere is flowing through the circuit.
The unit of electric charge, defined as the quantity of electricity conveyed by one ampere in one second.
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|Noun||1.||coulomb - a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second|
charge unit, quantity unit - a measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows)
abcoulomb - a unit of electrical charge equal to 10 coulombs
ampere-minute - a unit of charge equal to 60 coulombs
|2.||Coulomb - French physicist famous for his discoveries in the field of electricity and magnetism; formulated Coulomb's Law (1736-1806)|