What is Ampere?
{{Infobox Unit | name = Ampere | standard = [[SI base unit]] | quantity = [[Electric current]] | symbol = A | dimension = I | namedafter = [[André-Marie Ampère]] }} The '''ampere''' or '''amp''' ([[Symbol]]: A) is the [[SI base unit|standard unit]] of [[electric current]]. An electric current of one amp is one [[coulomb]] per second. The amp is named after [[André-Marie Ampère]] who studied [[electromagnetism]]'''. AMP is a unit magnetic pull, meaning that isn't a unit of power.''' The ampere is defined so the [[elementary charge]] ''e'' is 1.602 176 634 × 10<sup>−19</sup> C or A•s.<ref>{{cite web |title=ampere (A) |url=https://www.npl.co.uk/si-units/ampere |website=www.npl.co.uk |access-date=21 May 2019}}</ref> == References == <references /> == Other websites == * [http://physics.nist.gov/cuu/ The NIST Reference on Constants, Units, and Uncertainty] * [http://alpha.montclair.edu/~kowalskiL/SI/SI_PAGE.HTML A short history of the SI units in electricity] {{Webarchive|url=https://web.archive.org/web/20020214114359/http://alpha.montclair.edu/~kowalskiL/SI/SI_page.html |date=2002-02-14 }} {{SI units}} [[Category:SI units]] {{science-stub}}