Which unit is typically used to express electrical power?

The unit commonly used to express electrical power is the Watt. This unit measures the rate at which electrical energy is transferred or converted. One Watt is defined as one Joule per second, which indicates how much energy is used or produced in a given amount of time.

In electrical terms, power in a circuit can be calculated using the formula P = V × I, where P represents power in Watts, V represents voltage in Volts, and I represents current in Amperes. This relationship underlines the importance of the Watt in electrical systems, as it quantifies the actual consumption or production of power.

Ohms, volts, and amperes each represent different electrical parameters: ohms measure resistance, volts measure voltage (potential difference), and amperes measure current (the flow of electric charge). While all these units are essential in understanding electrical systems, they do not directly represent power, making the Watt the definitive unit for this purpose.