The flow of electrons, or the current, can be characterized as a rate. The number of electrons (or total charge) that flows past a specific point in a specific amount of time is the quantitative value for current.
Current
\(\large\mathsf{Current = \frac{\text {total charge (Coulombs)}}{\text {amount of time (seconds)}} }\)
\(\large\mathsf{I = \frac{Q}{\Delta t} }\)
Current is measured in Coulombs per second, which is equivalent to amperes (or amps or A for short). Consider that in a 1 amp current, 1.0 Coulomb of charge passes one cross section every second. That is 6.24 x 1018 electrons that pass that point in 1 second—that's 624 billion billion electrons! It is important to realize that the rate of flow is important when you are talking about an electric shock. The higher the rate of flow of the electrons, the greater shock potential that current has.
Question
What is a material called that encourages current? that resists current?
Conductors encourage the flow of current and insulators resist the flow of current.
