The ampere is equal to one coulomb per second.

• A. False
• B. True
• C. Sometimes
• D. Not sure

Answer: (B)

Current is the rate at which electric charge flows. The ampere is the unit that measures that rate, defined as one coulomb of charge passing a point per second. In other words, if one coulomb passes by each second, the current is one ampere. Since current i equals the amount of charge q divided by time t (i = dq/dt), one coulomb per second indeed corresponds to one ampere. So the statement is true.