Which unit is used to measure electric power?

The unit used to measure electric power is the watt. Wattage indicates the rate at which electrical energy is used or produced. In an electrical system, power can be calculated as the product of voltage (the electrical potential difference) and current (the flow of electric charge). Thus, power is fundamentally linked to both voltage and current, but the specific unit that quantifies this power is the watt.

Amperage measures the flow of electric current, while voltage quantifies the potential difference between two points in a circuit. Resistance, on the other hand, measures how much a material opposes the flow of current. Each of these terms relates to different aspects of electrical systems, but wattage specifically measures the rate of energy transfer or consumption, making it the correct unit for electric power.