What is a Volt (V)?
The volt is the basic unit of electromotive force. One volt represents the difference in potential between two points of an electric conductor, with one amp current flowing between those two points dissipating one watt of power.
What is the difference between amps, volts, and watts?
Imagine electricity as water flowing through a pipe. Amps—which measure electricity—would be the volume of water. Volts—which indicate electromotive force—would be the water pressure. Watts would be the power water could provide between the volume available and the force at which it flows.