Ampere (Amp)

AMP . A unit of electrical current or the rate of flow of electrons through a conductor. One volt across one ohm of resistance causes a current flow of one ampere.

One ampere equals 6.25 x 10^18 electrons per second passing a given point in a circuit.

An example: a 1,200 watt, 120-volt heater pulls 10 amps of electric current while running (watts divided by volts).