General Science

Cars & Driving

  • noun the strength of an electric current in amperes, used e.g. for marking fuses


  • In a circuit, the flow of electricity, expressed in amperes.


  • The intensity of a current flow. Expressed in amperes. ampere The fundamental SI unit of electric current. Currently, it is defined as the constant current that produces a force of 0.2 micronewtons per meter between two infinitely long parallel conductors placed one meter apart in a vacuum. A current of one ampere equals one coulomb of charge per second. Its abbreviation is amp. Its symbol is A.