What is the formula for calculating power in an electrical circuit?

The formula for calculating power in an electrical circuit is given by the relationship between voltage and current. Power (P) is calculated as the product of voltage (V) and current (I), which is mathematically expressed as P = V x I. This equation arises from Ohm's Law and the basic principles of electricity, where power represents the rate at which electrical energy is transferred by an electric circuit.

In this context, voltage is the electrical potential difference that drives the current through the circuit, while current represents the flow of electric charge. Therefore, multiplying these two quantities gives the total power consumed or generated in the circuit, measured in watts.

Understanding this relationship helps in analyzing circuit performance and designing electrical systems efficiently, as it allows for the calculation of power consumption based on the voltage supplied and the current flowing through the components of the circuit.