Power in an electrical circuit is defined as:

Power in an electrical circuit is defined as the rate at which energy is transferred or converted. This means it quantifies how much energy is transferred over a given period. Specifically, power is calculated as the total energy transferred divided by the time taken for that transfer, which aligns with the concept of energy transferred in 1 second. In terms of its units, power is measured in watts (W), where 1 watt is equivalent to 1 joule per second.

This understanding reflects the fundamental principle that power indicates how quickly electrical energy is being used or supplied in a circuit, making it a vital concept in both residential and industrial electrical applications.

The other options, while related to components of electrical circuits, do not accurately describe the definition of power. For instance, energy absorbed by a resistor pertains to the consumption of energy rather than its rate of transfer. Current times resistance gives the voltage through Ohm's Law, which does not directly define power but rather relates to the behavior of circuit components. Lastly, total voltage supplied relates to the electrical potential but does not measure the rate of energy transfer.