| 单词 | international coulomb |
| 释义 | > as lemmasinternational coulomb The designation adopted by the Paris Electric Congress in 1881, for the unit of electrical quantity; the quantity of electricity conveyed in one second by a current of one ampère. (For this unit the name Weber had been previously introduced into partial use.) Also known as international coulomb when defined in terms of the international ampere; in 1948 this was replaced by the absolute coulomb, defined in terms of the absolute ampere and now incorporated in the International System of Units. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electric charge, electricity > [noun] > unit of measurement Coulomb1881 macro-farad1904 1881 Nature 29 Sept. 512/2 The name Coulomb to be given to the quantity of electricity defined by the condition that an ampère gives one coulomb per second. 1892 Lightning 3 Mar. (Spec. Suppl.) Gloss. Electrical Terms s.v. The Coulomb is the quantity of electricity, which, when passed through a solution of nitrate of silver, deposits ·001118 of a gramme of silver on the plate by which it leaves the liquid. 1893 Trans. Amer. Inst. Electr. Engineers 10 469 As the Unit of Quantity, the International Coulomb, which is the quantity of electricity transferred by a current of one international ampere in one second. 1911 Encycl. Brit. XXVII. 742/2 The International Coulomb..is the quantity of electricity transferred by a current of one international ampere in one second. 1938 Hackh's Chem. Dict. (ed. 2) 256/1 Coulomb..international ∼. 1 Int. coul. = 0·9999 absolute coul. 1959 Chambers's Encycl. XIV. 188/1 The common practice is to introduce the absolute coulomb as the fourth fundamental unit [of absolute practical units]. 1963 H. G. Jerrard & D. B. McNeill Dict. Sci. Units 35 1 international coulomb = 0·99985 absolute coulomb. < as lemmas |
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