Units

Definitions and symbols
Units

Author : Thibaut FOURCADE

Publication date: March 10, 2022 | Lire en français

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2. Definitions and symbols

Ampere (A): the ampere is the SI unit of electric current. It is defined by the numerical value of the elementary charge :

e = 1,602 176 634 \times 10^{- 19} As

He comes :

1 A = (\frac{e}{1,602 176 634 \times 10^{- 19}}) s^{- 1}

...

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Definitions and symbols

Laws

Law of July 4, 1837, amended by the law of July 15, 1944, relating to the metric system and the verification of weights and measures.

Law of April 2, 1919 on units of measurement, amended by the law of January 14, 1948.

Decrees

Decree no. 61-501 of May 3, 1961 (OJ of May 20, 1961 corrected August 11, 1961) and amended by...

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