Letter Vo

Volt

The basic unit of voltage. The symbol for volt is “V.”

Voltage

Also called difference of potential, electromotive force, or EMF.
Voltage is a force that, when applied to a conductor, causes
current to flow. Voltage is symbolized by “E” or “V” and is
measured in volts.

Voltmeter
A meter designed to measure voltage.

Volts per Hertz (V/Hz)Operation
Describes the operation of many variable frequency drives that
control the speed of an AC motor by varying the frequency of
the voltage applied to the motor while maintaining a constant
voltage to frequency ratio.