Why can current be larger than placed charges in a wire?

[plasma tail]

Homework Statement

We have seen that a coulomb is an enormous amount of
charge; it is virtually impossible to place a charge of 1 C on an
object. Yet, a current of 10 A, is quite reasonable. Explain
this apparent discrepancy.

Homework Equations

I = nqvA

The Attempt at a Solution

i think it is because current is the amount of charge flow per second, and the amount of charge depends on the volume of the wire, hence current can be larger than the placed charges if volume of the wire is pretty big. is this a good answer? is there anything to add? thx

 

[Noctisdark]

I agree with: As you've already said, current is defined as the amount of charge flow per second, there could be many charges little charges but summing them up will result in 1 C, bigger volume mean less resistance so more current flow this can be explained (the bad way) because charges have more space to avoid hitting static atoms in the wire (also the reason you've mentionned) and I should mention all the charges flow on the surface,any way if we get into the math, $I = \frac{\delta Q}{\delta t}$, if we take for example $\delta t = 0.01 s$ mesure that $\delta Q = 0.1C$ passed, then we conclude that I = 10A, Cheers :D