A unit of measure of the pressure in an electrical circuit. Volts are a measure of electric potential. Voltage is often explained using a liquid analogy -- comparing water pressure to voltage: a high pressure hose would be considered high voltage, while a slow-moving stream could be compared to low voltage.
The measurement of electromotive force (EMF). One volt applied to a conductor with resistance of one OHM, will produce one amp of current, the symbol for volts is E, and is used in mathematical equations.
measure the force of electricity. The voltage is raised so the electricity can travel a long way through transmission lines. At a substation the voltage is lowered to a safe level before it is brought to our homes and other buildings.