What do you use to describe how much electric current flows through a wire?
I is the symbol for electric current.
It is measured in amps, or amperes (same thing, longer word).
An ammeter is used to measure current.
Is it true that when an electric current flows through a long conductor each free electron moves through a relatively short distance?
What is electrical energy converted into when electric current flows through the metal filament of a light bulb?
currents can be thought of simply by flowing through a wire, though not always the case. It is convenient to think of current density which is the amount of current flowing through a cross sectional area, like water through the opening of a pipe, since electric current flows through many 3-dimensional objects.