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Also known as electric tension, tension
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).
AI overview
Voltage is the difference in electrical potential between two points, often thought of as the electrical "pressure" that pushes electric charge from one location to another. It measures how much work is needed to move a unit of electric charge between those two points, and is expressed in units called volts.
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Key facts
- Physical quantity.bgcolour
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- Physical quantity.name
- Voltage
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- Batteries are sources of voltage in many electric circuits.
- Physical quantity.unit
- volt
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- , , ,
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- \mathsf{M} \mathsf{L}^2 \mathsf{T}^{-3} \mathsf{I}^{-1}
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- Voltage = Energy / charge
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- kg⋅m2⋅s−3⋅A−1
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