Le texto fonte de Volt

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[[File:NISTvoltChip.jpg|thumb|upright=1.45|Arrangiamento de [[Junction de Josephson|junctiones de Josephson]] disveloppate per [[NIST]] como un volt standard.]]

Le '''volt''' (symbolo: '''V''') es le [[Unitate derivate del SI|unitate derivate]] de [[fortia electromotive]] in le [[Systema International de Unitates]], communmente appellate "[[voltage]]".
<ref name="BIPM Definition">http://www.bipm.org/en/si/si_brochure/chapter2/2-2/table3.html, BIPM SI Brochure, Table 3 (Section 2.2.2)</ref> 
Illo es anque le unitate pro le connexe ma legiermente differente quantitate [[potential electric]] in un puncto 
(voltage como connexe a un [[terra referential]]) e [[differentia potential electric]] (anque appellate "differentia potential electrostatic").
Illo es nominate pro del physico italiano [[Alessandro Volta]] (1745–1827), qui inventava le [[pila voltaic]], forsan le prime [[pila (electricitate)|pila]] chimic.

== Definition ==
Le volt es definite como le valor del [[voltage]] trans un [[conductor electric|conductor]] quando un [[Currente electric|currente]] de un [[ampere]] dissipa un [[watt]] de [[potentia (physica)|potentia]] in le conductor. <ref>http://www.bipm.org/utils/common/pdf/si_brochure_8_en.pdf BIPM SI Brochure: Appendix 1, p. 144</ref>
 
Illo etiam equala un [[joule]] de [[energia]] per [[coulomb]] de [[carga electric]], J/C. Illo pote esser exprimite in terminos del unitates del SI como:

:<math>\mbox{V} = \mbox{A} \cdot \Omega= \dfrac{\mbox{W}}{\mbox{A}} = \sqrt{\mbox{W} \cdot \Omega} = \dfrac{\mbox{J}}{\mbox{A} \cdot \mbox{s}} = \dfrac{\mbox{N} \cdot \mbox{m} }{\mbox{A} \cdot \mbox{s}}  = \dfrac{\mbox{kg} \cdot \mbox{m}^2}{\mbox{C} \cdot \mbox{s}^2} = \dfrac{\mbox{N} \cdot \mbox{m}} {\mbox{C}} = \dfrac{\mbox{J}}{\mbox{C}}</math>

Illo anque pote esser scribite in le [[unitate de base del SI|unitates de base del SI]] [[metro|m]], [[kilogramma|kg]], [[secunda|s]] e [[ampere|A]] como: 
:<math>\mbox{V} = \dfrac{\mbox{kg} \cdot \mbox{m}^2}{\mbox{A} \cdot \mbox{s}^{3}} </math>

== Vide etiam ==
* [[Conversion de unitates]]
* [[Energia]]

== Referentias ==
<references/>

{{traduction|en|Volt|433377538}}

[[Categoria:Unitates de electromagnetismo]]
[[Categoria:Unitates derivate del SI]]

{{pecietta|physica}}