Ampere

A.-M. Ampère
A.-M. Ampère
The ampere (A) is the unit of electrical current (I). The unit is named after the French physicist and mathematician André-Marie Ampère (1775 - 1836).

The ampere (A) is defined by fixing the electron charge e to be 1.602176634×10-19 C (= A·s), where second is defined by the atomic clock.

Related units

  • base units
  • coulomb
  • farad
  • joule
  • ohm
  • statcoulomb
  • statvolt
  • volt
  • watt

» back to lexicon A - Z