One ampere is equivalent to one ________.

One ampere is defined as the flow of one coulomb of charge passing through a point in a circuit in one second. This fundamental relationship highlights the direct connection between current (measured in amperes) and electric charge (measured in coulombs).

In practical terms, when you have a current of one ampere, it signifies that a quantity of charge amounting to one coulomb is moving through the conductor every second. This basic concept is crucial in understanding electrical circuits and performing calculations involving current, charge, and time.

The other options do not correctly capture the relationship defined by the ampere. For example, voltage, power, and resistance do not define current in a way that's equivalent to coulombs per second; thus, they cannot be used in this context.