In a circuit they are being pushed up a gradient against their natural
tendency to stay still, if you get my meaning.
Coulombs get an outing in:
CδV = I*T
that particularly handy formula for sizing reservoir and de-coupling capacitors.
Now, I do occasionally wrestle with:
LδI = V*T
when picking inductors for switching converters.
And I know this equation is equal to volt*seconds.