ampere, \(\text{A}\)

https://doi.org/10.1351/goldbook.A00300
The ampere, symbol \(\text{A}\), is the SI unit of electric current. It is defined by taking the fixed numerical value of the @[email protected] \(e\) to be \(1.602\ 176\ 634\times10^{-19}\) when expressed in the unit \(\text{C}\), which is equal to \(\text{A s}\), where the second is defined in terms of @[email protected]
Source:
BIPM, The International System of Units, SI Brochure, 9th ed. (2019), p. 132 [Terms] [Book]