volt
Sign in to saveThe volt (symbol: V), named after Alessandro Volta, is the unit of measurement of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI).
AI overview
A volt is the standard unit used to measure electrical pressure or force—the push that makes electricity flow through wires and devices. Understanding volts matters because it tells you how much electrical power a device uses and whether it's safe to use with a particular power source, like a battery or wall outlet.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Unit.name
- volt
- Unit.image
- 240px
- Unit.caption
- Josephson voltage standard chip developed by the National Bureau of Standards as a standard volt
- Unit.standard
- SI
- Unit.quantity
- electric potential, electromotive force
- Unit.symbol
- V
- Unit.dimension
- M⋅L2⋅T−3⋅I
- Unit.namedafter
- Alessandro Volta
- Unit.extralabel
- SI base units
- Unit.extradata
- kg⋅m2⋅s−3⋅A−1
via Wikipedia infobox
Article
8 sectionsContents
- Definition
- Josephson junction definition
- Water-flow analogy
- Common voltages <span class="anchor" id="Common values"></span>
- History
- See also
- References
- External links
The volt (symbol: V), named after Alessandro Volta, is the unit of measurement of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI).
== Definition == One volt is defined as the electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points. It can be expressed in terms of SI base units (m, kg, s, and A) as