How is electrical power calculated?

The correct calculation for electrical power is determined by the formula Power (P) = Voltage (V) × Current (I). This relationship indicates that power, measured in watts, is the product of the voltage across a circuit and the current flowing through it.

When voltage is applied to a circuit, it creates an electric field that causes current to flow. The multiplication of these two fundamental properties—voltage and current—gives the total power consumed by the electrical device or circuit at that moment. This formula is derived from Ohm's Law and is fundamental in electrical engineering and electronics, providing a basis for understanding how electrical energy is converted into work or heat in various devices.

Understanding this calculation is crucial for anyone working with electrical systems, as it helps in the design, analysis, and optimization of electrical circuits to ensure they operate within safe and efficient parameters.