What unit is used to denote electrical power?

The unit used to denote electrical power is the watt. This is a fundamental unit in the International System of Units (SI) that quantifies the rate at which energy is consumed or generated. One watt is defined as one joule per second, illustrating how much energy is used in a given timeframe.

In the context of electricity, power is calculated as the product of voltage (in volts) and current (in amperes). This shows how watts directly relate to the other electrical units, as they measure different aspects of electrical systems. The watt effectively allows electrologists and others in the field to understand the energy consumption of devices and equipment used in their practice, emphasizing its importance in safety and efficiency.

The other options represent different electrical concepts: volts measure electric potential, ohms measure resistance, and amperes measure electric current. Each of these units is essential to understanding electrical systems but serves different roles and does not directly indicate power as watts do.