What is the unit of charge that is carried by 1 ampere flowing for one second?

The unit of charge is defined as the amount of electric charge that flows when a current of one ampere passes for one second. This relationship is established by the definition of the coulomb, which is the standard unit of electric charge in the International System of Units (SI). Specifically, one coulomb is equal to one ampere multiplied by one second (1 C = 1 A × 1 s).

In this context, when you have a flow of electrical current at one ampere for a duration of one second, the charge that has moved is precisely one coulomb. This concept is fundamental in understanding electric charge and current flow in circuits.

The other units listed, while related to electricity, serve different purposes: the joule is a unit of energy, the ohm is a unit of resistance, and the farad is a unit of capacitance. Each plays a unique role in the study of electrical systems but does not directly quantify the charge flowing in the scenario given in the question. Thus, the recognition that one ampere for one second results in one coulomb underscores the fundamental definition of electric charge.