Problem

Current is just the flow of charge per unit time—think of it as a river where you're counting how many charge carriers pass a checkpoint each second. Since one ampere equals one coulomb per second, and each electron carries a fixed charge (the elementary charge $e = 1.6 \times 10^{-19}$ C), you can convert the total charge flowing per second into a count of individual electrons. It's a straightforward unit conversion: divide the current by the charge per electron.

Current is just the flow of charge per unit time—think of it as a river where you're counting how many charge carriers pass a checkpoint each second. Since one ampere equals one coulomb per second, and each electron carries a fixed charge (the elementary charge $e = 1.6 \times 10^{-19}$ C), you can convert the total charge flowing per second into a count of individual electrons. It's a straightforward unit conversion: divide the current by the charge per electron.