volt - a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through itpotential unit - a measure of the potential energy of a unit charge at a give point in a circuit relative to a reference point (ground) abvolt - a unit of potential equal to one-hundred-millionth of a volt millivolt, mV - a unit of potential equal to one thousandth of a volt microvolt - a unit of potential equal to one millionth of a volt nanovolt - a unit of potential equal to one billionth of a volt picovolt - a unit of potential equal to one trillionth of a volt femtovolt - a unit of potential equal to one quadrillionth of a volt (or one thousandth of a nanosecond) kilovolt, kV - a unit of potential equal to a thousand volts |