According to Watt's Law, how is power calculated?

Watt's Law defines the relationship between power, voltage, and current in an electrical circuit. It states that power (measured in watts) is equal to the voltage (measured in volts) multiplied by the current (measured in amperes). This fundamental concept illustrates how power consumption in an electrical system can be easily calculated if one knows the voltage supplied and the current flowing through the circuit.

In practical applications, understanding Watt's Law is crucial because it allows electricians, engineers, and technicians to determine how much power devices require and to ensure that circuits are designed with appropriate voltages and currents to prevent overloads. The other options do not represent this relationship correctly, as they involve incorrect mathematical operations or concepts that do not align with the definition of power in electrical systems.