How Does Electricity Work?
Electricity moves through wires, pushed along by a force called potential. Electric potential is measured in units of volts. The voltage forcing electricity through the power wiring comes from a utility company’s generating plant. Large wires are needed to carry large currents. Electricity faces resistance to its flow through a wire, and in fact, resistance is the electrical term for the force that works against the free-flow of electricity. Resistance is measured in units called ohms. Electricity, voltage and current all work together to form power, which is measured by Watts.