How is the amount of energy consumed in a circuit expressed in terms of power?

The amount of energy consumed in a circuit, or power, is expressed as the product of voltage and current. This relationship is described by the formula:

[ P = V \times I ]

where ( P ) represents power (measured in watts), ( V ) is the voltage (in volts), and ( I ) is the current (in amperes). This means that power is dependent on both voltage and current; if either one changes, it directly affects the overall power consumed in the circuit.

Understanding that power is derived from the combination of both voltage and current is fundamental in electrical work. Increasing either voltage or current increases the power consumed, thereby emphasizing their combined influence on energy consumption in electrical circuits.