What is the product of voltage and ampere called?

The product of voltage and ampere is called a watt. This unit of measurement is derived from the relationship between electric power, voltage, and current. Specifically, one watt is defined as the power produced when one ampere of current flows under an electrical potential of one volt.

This relationship is fundamental in understanding electrical circuits and power consumption, as it quantifies how much energy is used or generated per unit of time. Understanding this concept is essential for professionals in electrology and related fields, where accurate measurements of electrical output and equipment efficiency are crucial.

Other terms like kilowatt and joule represent different concepts in electricity. A kilowatt is a larger unit of power equal to 1,000 watts, typically used when discussing larger power levels. A joule is a unit of energy that measures the work done or amount of energy transferred over time. Finally, volt-ampere is another unit that is sometimes used in the context of apparent power in AC circuits, but it also encompasses reactive power, making it distinct from the straightforward definition of power as captured by the watt.