voltage

Line integral of the electric field strength

EntityQ25428

Also known as electric tension · tension

Subclass of: scalar quantity
, potential difference

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Voltage, also known as (electrical) potential difference, electric pressure, or electric tension, is the difference in electric potential between two points. In a static electric field, it corresponds to the work needed per unit of charge to move a positive test charge from the first point to the second point. In the International System of Units (SI), the derived unit for voltage is the volt (V).

Overview

All data

58 statements · 16% with external sources · numbers in brackets are citations

Main Wikidata property: voltage
ISQ dimension: \mathsf{L}^2 \mathsf{M} \mathsf{T}^{-3} \mathsf{I}^{-1}
Facet of: electricity
Different from: electric potential
electric potential difference
voltage
Said to be the same as: electric potential difference
Quantity symbol (LaTeX): U
U_{\mathrm{a} \mathrm{b}}
Recommended unit of measurement: volt
1
Sources
1.Stated in IEC 80000-6:2008 Quantities and units—Part 6: Electromagnetism
View statement on Wikidata ↗
Permanent duplicated item: Q110096019
Quantity symbol (string): U
V
Defining formula: U_{\mathrm{a} \mathrm{b}} = \int \limits_{\boldsymbol{r}_{\mathrm{a}} (\mathsf{C})}^{\boldsymbol{r}_{\mathrm{b}}} \boldsymbol{E} \cdot \mathrm{d} \boldsymbol{r}
2
Sources
1.Stated in IEC 80000-6:2008 Quantities and units—Part 6: Electromagnetism
2.Stated in International Electrotechnical Vocabulary
View statement on Wikidata ↗
In defining formula: U_{\mathrm{a} \mathrm{b}} symbol represents: voltage
\boldsymbol{E} symbol represents: electric field strength
\int_{\boldsymbol{c}} \boldsymbol{F} \cdot \mathrm{d}\boldsymbol{s} symbol represents: line integral of a vector field
\mathsf{C} symbol represents: path
Voltage: unknown
Has characteristic: voltage variation

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33 identifiers linking voltage across the web's reference databases

Data quality

statements

16%

externally sourced

Source last edited August 31, 2026. AIDB refreshes this page daily.

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AIDB. (2026). voltage (Q25428). Retrieved from https://aidb.si/e/voltage-Q25428