What is the unit of measurement for electrical power?

The unit of measurement for electrical power is Watts. Power in an electrical circuit is defined as the rate at which electrical energy is transferred by an electric circuit. One watt is equal to one joule per second, which means that it measures how much energy is used over time.

The relationship between power, voltage, and current is established through the formula: Power (P) = Voltage (V) × Current (I). This illustrates that power is fundamentally derived from both the voltage applied in the circuit and the current flowing through it, reinforcing that Watts serves as the appropriate unit for measuring this quantity.

Understanding why other units are not suitable for measuring power is also important. Volts measure electrical potential difference, Amperes measure electric current, and Ohms measure resistance in a circuit. Each of these units plays a crucial role in understanding electrical systems but does not directly quantify power like Watts do.