scalar quantity equal to the line integral of the electric field strength E along a specific path linking two points a and b:
where ra and rb are the position vectors for a and b, respectively, and dr is the vector line element
NOTE 1 – In the case of an irrotational field strength, the voltage is independent of the path and equal to the negative of the electric potential difference between the two points:
NOTE 2 – The name "voltage", commonly used in the English language, is an exception from the principle that a quantity name should not refer to any name of unit.
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