Total electrical energy expended in an electrical circuit can be defined as the product of which two factors?

The total electrical energy expended in an electrical circuit is defined as the product of time and power. Power in an electrical circuit can be expressed using the formula:

[ P = IV ]

where ( P ) is power, ( I ) is current, and ( V ) is voltage. Power represents the rate at which energy is consumed or generated in the circuit. To find the total energy expended over a period, you multiply the power by the time during which the power is being used. Therefore, using the equation:

[ \text{Energy} = P \times t ]

where ( t ) is time, reinforces the concept that energy is indeed related to both time and power. This relationship is crucial for understanding how long a device operates and how much energy it consumes during that time frame.

While other combinations of factors related to electric circuits (like current and voltage, or resistance and power) are important for calculating specific parameters or understanding circuit functionality, they do not directly define the total energy. Thus, the relationship of time and power most accurately represents the total electrical energy expended in the circuit.