Voltage
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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).
* Calculated from Wikipedia data.
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| Voltage | |
|---|---|
 | |
Common symbols | V , ∆V , U , ∆U |
| SI unit | volt |
| In SI base units | kg⋅m⋅s⋅A |
Derivations from other quantities | Voltage = Energy / charge |
| Dimension | |
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