What is the equivalent of 1 ampere in terms of coulombs?

One ampere is defined as a flow of electric charge of one coulomb per second. This definition comes from the relationship between current, charge, and time: current (I) is equal to the charge (Q) divided by the time (t) in seconds, represented by the formula I = Q/t.

When you specify a current of one ampere, it means that each second, one coulomb of charge is passing through a point in the circuit. Therefore, choosing the option that states "1 coulomb per second" accurately reflects this definition of an ampere, making it the correct answer.

In contrast, options that suggest a flow of one coulomb over longer periods, such as per minute, hour, or millisecond, do not align with the established definition of an ampere, which specifies that the charge must be measured over a duration of one second.