One ampere flowing under the electromotive force of
one volt is called a watt (W).
• Kilowatt-hours (kWh) is used to measure electrical
power in a utility meters.
• A watt is used to measure electrons passing a point
and how much force is available to move them.
• A watt represents the rate at which energy is being
used at a given moment.
• 1000 watts = 1 kilowatt. ~ the amount of current
determines the size of the wire needed for a particular used.