http://wiki.karljones.com/index.php?action=history&feed=atom&title=VoltageVoltage - Revision history2026-10-23T20:02:15ZRevision history for this page on the wikiMediaWiki 1.24.2http://wiki.karljones.com/index.php?title=Voltage&diff=17689&oldid=prevKarl Jones: Created page with "'''Voltage''', '''electric potential difference''', '''electric pressure''' or '''electric tension''' (formally denoted ∆V or ∆U, but more often simply as V or U, for inst..."2016-09-04T03:06:00Z<p>Created page with "'''Voltage''', '''electric potential difference''', '''electric pressure''' or '''electric tension''' (formally denoted ∆V or ∆U, but more often simply as V or U, for inst..."</p>
<p><b>New page</b></p><div>'''Voltage''', '''electric potential difference''', '''electric pressure''' or '''electric tension''' (formally denoted ∆V or ∆U, but more often simply as V or U, for instance in the context of Ohm's or Kirchhoff's laws) is the difference in electric potential energy between two points per unit electric charge.<br />
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== Description ==<br />
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The voltage between two points is equal to the work done per unit of charge against a static electric field to move the test charge between two points and is measured in units of volts (a joule per coulomb).<br />
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Voltage can be caused by static electric fields, by electric current through a magnetic field, by time-varying magnetic fields, or some combination of these three.<br />
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A voltmeter can be used to measure the voltage (or potential difference) between two points in a system; often a common reference potential such as the ground of the system is used as one of the points.<br />
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A voltage may represent either a source of [[energy]] (electromotive force), or lost, used, or stored energy (potential drop).<br />
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== See also ==<br />
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* [[Alternating current (AC)]]<br />
* [[Direct current (DC)]]<br />
* [[Electric potential]]<br />
* [[Electric shock]]<br />
* [[Electrical measurements]]<br />
* [[Electrochemical potential]]<br />
* [[Fermi level]]<br />
* [[High voltage]]<br />
* [[Mains electricity]] (an article about domestic power supply voltages)<br />
* [[Mains electricity by country]] (list of countries with mains voltage and frequency)<br />
* [[Ohm's law]]<br />
* [[Ohm]]<br />
* [[Open-circuit voltage]]<br />
* [[Phantom voltage]]<br />
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== External links ==<br />
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* [https://en.wikipedia.org/wiki/Voltage Voltage] @ Wikipedia.org <br />
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[[Category:Electricity]]<br />
[[Category:Physics]]</div>Karl Jones