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Voltage

img Voltage, also known as electric pressure, electric tension, or (electric) potential difference, 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 test charge between the two points. In the International System of Units (SI), the derived unit for voltage is the volt (V).
wikipedia:: Voltage
img The Volt is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI).
wikipedia:: Volt

Voltage, or electrical pressure, is the difference in electric potential between two points.

Voltage
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Voltage