Question

Explain how charges flow inside a wire ??

Answer 1

The battery soaks of the electrons going from the wire into its positive terminal and keeps replacing the electrons that going to the other end of the wire from the negative terminal, the movement of electrons through the wire is called "electric current" which is measured in ampere.

In terms of drift velocity,
I = AneVd
A,n,e are constant.
Vd = Drift speed

Answer 2

The battery soaks up the electrons going from the wire into its positive terminal and keeps replacing the electrons that go into other end of the wire from the negative terminal . The electrons moving through the wire are called the electric currents