Voltage is referred to as what?

Voltage is referred to as the difference of electrical potential. This concept is fundamental in understanding how electrical energy is transferred in a circuit. Voltage represents the force that pushes electric charges through a conductor, and it is measured in volts.

When there is a difference in electrical potential between two points, it creates an electric field, which causes current to flow if the circuit is closed. This potential difference can be likened to water pressure in a hose; just as higher pressure can push water through the hose, higher voltage can push electrons through a circuit.

In contrast, the other options describe different electrical concepts: current relates to the flow of electrons, resistance pertains to the opposition to that flow, and power is a measure of how much work is done by that flow of electrons (voltage times current). Understanding voltage as a difference in potential is essential for grasping how electric circuits function.