A volt is itself a unit.
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The SI unit of voltage is the Volt, which is a derived unit equivalent to a Joule/Coulomb.
it is a quantity defined as work done per unit charge.it has same unit as voltage which is volt represented by 'V'.
Volt
A 22VA transformer has a power rating of 22 watts. VA (volt-ampere) is a unit used to measure the apparent power in an electrical circuit.
Voltage: The proper term is 'electromotive force'. It's measured in volts.Current: Measured in amperes.Resistance: Measured in ohms.