Editing Electric potential (section)

==Galvani potential versus electrochemical potential==
{{Main|Galvani potential|Electrochemical potential|Fermi level}}
Inside metals (and other solids and liquids), the energy of an electron is affected not only by the electric potential, but also by the specific atomic environment that it is in. When a [[voltmeter]] is connected between two different types of metal, it measures the '''potential difference''' corrected for the different atomic environments.<ref>{{cite book|url=https://books.google.com/books?id=09QI-assq1cC&pg=PA22 |title=Fundamentals of electrochemistry|first= Vladimir Sergeevich|last= Bagotskii | name-list-style = vanc |page=22|isbn=978-0-471-70058-6|year=2006|publisher=John Wiley & Sons }}</ref> The quantity measured by a voltmeter is called [[electrochemical potential]] or [[fermi level]], while the pure unadjusted electric potential, {{math|''V''}}, is sometimes called the [[Galvani potential]], {{mvar|ϕ}}. The terms "voltage" and "electric potential" are a bit ambiguous but one may refer to {{em|either}} of these in different contexts.