amper on määratud elementaarlaengu e fikseerimisega väärtusarvul 1,602 176 634 × 10–19 väljendatud ühiku C abil, mis on võrdne A s, kus sekund on määratletud ∆νCs alusel, the ampere defined by taking the fixed numerical value of the elementary charge e to be 1,602 176 634 × 10–19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ∆νCs
the ampere is that constant electric current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in a vacuum, would produce between these conductors a force equal to 2 × 10^−7 newton per metre of length, a unit of electric current flow equivalent to the motion of 1 coulomb of charge or 6.24 X 10[18 th power] electrons past any cross section in 1 second, SI elektrivoolu ühik, mis võrdub sellise konstantse vooluga kahes sirges lõpmata pikas ja tühise ümara ristlõikega paralleelses vaakumis vahekaugusega 1 meeter paiknevas juhis, mis tekitab nende juhtide vahel jõu 2 × 10^–7 njuutonit meetri kohta
Ampere . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/Ampere/1/deu (20.06.2026)
