Verskil tussen weergawes van "Elektronvolt"

28 grepe verwyder ,  12 jaar gelede
+Verwysings, ens.
(+Verwysings, ens.)
 
'n Elektronvolt is 'n baie klein hoeveelheid energie:
: 1 eV = 1.602 176 53 e<sup>−19</sup> [[joule|J]]. <ref>Peter J. Mohr en Barry N. Taylor, CODATA recommended values of the fundamental physical constants: 2002, Reviews of Modern Physics, JanuaryJanuarie 2005, volume=77 bladsye=1&ndash;107, [http://www.atomwave.org/rmparticle/ao%20refs/aifm%20refs%20sorted%20by%20topic/other%20rmp%20articles/CODATA2005.pdf PDF] afgelaai op 2006-07-01, 'n In diepte bespreking oor hoe die CODATA konstantes gekies en bepaal is.</ref> (of ongeveer 0.160 [[atto|a]]J)
 
Die elektronvolt as eenheid word deur die [[SI]] aanvaar (maar nie aangemoedig nie). Dit word algemeen gebruik in [[Vastetoestandfisika|Vastetoestand-]], [[Kernfisika|Kern-]] en [[partikelfisika]], dikwels saam met die [[SI#SI-voorvoegsels|voorvoegsels]] m, k, M, G of T.
 
[[Ionisasie-energie|Ionisasie-energieë]] en ander atoomeienskappe word dikwels aangehaal in terme van elektronvolt, veral in ouer tekste.
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==Using electronvolts to measure mass==
[[Albert Einstein]] reasoned that energy is equivalent to [[mass]], as famously expressed in the [[mass-energy equivalence]] formula ''E'' = ''mc''² (1.0000 [[kilogram|kg]] = 89.876 [[petajoule|PJ]]). It is thus common in particle physics, where mass and energy are often interchanged, to use eV/''c''² or even simply eV as a unit of mass.
 
For example, a typical [[magnetic confinement fusion]] plasma is 15 keV, or 174 megakelvins.
 
==Reference==
<references/>
 
==See also==
*[http://www1.bipm.org/en/si/si_brochure/chapter4/table7.html BIPM's definition of the electronvolt]
*http://physics.nist.gov/cuu/Constants physical constants reference; CODATA data
 
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