Standards of Weights and Measures Act, 1976
8. Base unit of
electric current. -
(1) The base unit of
electric current shall be the ampere.
(2) The “ampere” is that
constant current which if maintained in two straight parallel conductors of
infinite length, of negligible circular cross-section, and placed one meter
apart in vacuum, would produce between these conductors a force equal to 2 x 10
-7 Newton per meter of length.