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Preferred Label : ampere;

IUPAC definition : SI base unit for the electric current (symbol: A). The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10E-7 newton per metre of length (9th CGPM, 1948).;

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SI base unit for the electric current (symbol: A). The ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 metre apart in vacuum, would produce between these conductors a force equal to 2 x 10E-7 newton per metre of length (9th CGPM, 1948).

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29/05/2025


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