Current is the rate charge flows past a point. Set how much charge Q crosses the wire and how long it takes t — the dot stream past the marked cross-section speeds up and slows down with the current.
Current I = Q ÷ t
2.00 A
10 C in 5 s is a 2-ampere current.
Electron bookkeeping
Electrons in Q6.24 × 10^19
Electrons per second1.25 × 10^19
Charge Q10.0 C
Time t5.0 s
Elementary charge e = 1.602 × 10^-19 C · the electron count N depends only on Q, so stretching the time thins the flow without changing N · the dots are a capped visual sample; the readouts stay exact.
Tip: hold Q fixed and triple the time — the same electrons now trickle past the plane at a third of the rate. Current is delivery speed, not electron count.