Which formula represents electrical power?

The formula that represents electrical power is P = VI, which indicates that power (P) is the product of voltage (V) and current (I). This relationship is essential in electrical circuits, as it quantifies the rate at which energy is consumed or generated.

Power is measured in watts (W) and is a crucial concept in both residential and industrial electrical systems. When voltage is applied across a circuit and current flows through it, the product of these two quantities determines how much power is used. For example, in a light bulb, the voltage supplied by the electrical source multiplied by the current flowing through the bulb gives us the power rating, which indicates how much energy the bulb consumes per unit of time.

Understanding this formula allows engineers and electricians to design systems that operate efficiently, ensuring that devices run at the appropriate power levels for their intended functions.