What does Watt's Law state?

Watt's Law states that the power (P) in an electrical circuit is equal to the voltage (V) across the circuit multiplied by the current (I) flowing through it, represented mathematically as P = V × I. This relationship is fundamental in electrical engineering and is crucial for understanding how electrical systems operate.

Power, measured in watts, indicates the rate at which electrical energy is transferred or converted. The equation highlights how increasing either the voltage or the current will result in an increased power output, which is vital when sizing electrical components, designing circuits, and troubleshooting issues within a system.

In the context of the other options, while they present related concepts of electrical calculations (such as Ohm's Law and rearranged forms of Watt's Law), they do not encapsulate the primary statement of Watt's Law itself. The focus on the product of voltage and current clearly defines the relationship between these three electrical parameters.