Ampere - MSN Encarta

Windows Live® Search Results

Ampere from FOLDOC
Ampere < unit, electronics > (Amp, A) The unit of electrical current flow. One Amp is the current that will flow through a one-ohm resistance when one Volt DC is applied across it.
Ampere summary
André-Marie Ampère (1775-1836) ... Ampère made important contributions to the theory of Electricity and magnetism.
Ampere - Wikipedia, the free encyclopedia
The ampere, in practice often shortened to amp, (symbol: A) is a unit of electric current, or amount of electric charge per second. The ampere is an SI base unit, and is named ...

See all search results in
Windows Live® Search Results

Ampere, basic unit of electric current, symbol A or amp, named after the 19th-century French physicist André Marie Ampère. The ampere was first defined as a flow of 1 coulomb of electricity per second, and later as the constant current which, if maintained in two straight parallel conductors of infinite length, of negligible cross-section, and placed one metre apart in a vacuum, would produce between these conductors a force of 2 × 10^-7 newtons per metre of length. See Electrical Units; International System of Units.