What is the rate of flow of charge per second called?

The rate of flow of charge per second is referred to as current. It is measured in amperes (A), where one ampere represents one coulomb of charge passing through a point in a circuit per second. This concept is fundamental to understanding electric circuits, as current is what allows electrical devices to operate.

Voltage, on the other hand, is the electrical potential difference that drives the flow of current. Resistance measures how much an object opposes the flow of current, while capacitance refers to the ability of a component to store charge. Therefore, current is the appropriate term for this definition, as it specifically describes the movement of electric charge.