How is current defined in electrical terms?

Current in electrical terms is defined as the flow of electric charge. Specifically, it is the amount of charge that passes a point in a circuit per unit of time. The standard unit of current is the ampere (A), which is equivalent to one coulomb of charge passing through a point in one second. This definition highlights the relationship between charge and time, which is fundamental to understanding how electricity works in circuits.

Voltage, resistance, and power are all related electrical concepts but do not define current itself. Voltage refers to the electric potential difference between two points, resistance measures how much a material opposes the flow of current, and power indicates the rate at which energy is used or converted in a circuit. Thus, the correct option accurately captures the essence of what current represents in the context of electrical circuits.