Amperes are defined as coulombs per second.

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Multiple Choice

Amperes are defined as coulombs per second.

Explanation:
Current is the rate at which electric charge flows past a point. This means current equals charge over time, I = dQ/dt. If one coulomb passes every second, that corresponds to an current of one ampere. So amperes measure how much charge moves per unit time, and 1 ampere equals 1 coulomb per second in practice. For example, 0.02 coulombs per second gives 0.02 A (20 mA). The modern SI definition fixes the elementary charge, but the relationship I = Q/t still holds, so describing an ampere as coulombs per second is correct.

Current is the rate at which electric charge flows past a point. This means current equals charge over time, I = dQ/dt. If one coulomb passes every second, that corresponds to an current of one ampere. So amperes measure how much charge moves per unit time, and 1 ampere equals 1 coulomb per second in practice. For example, 0.02 coulombs per second gives 0.02 A (20 mA). The modern SI definition fixes the elementary charge, but the relationship I = Q/t still holds, so describing an ampere as coulombs per second is correct.

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