What are free electrons ?

What is a free electron at rest?

What is a free electron? Explain conducting and nonconducting materials in terms of it.

What happens to the free electrons when the conductor are connected to the battery ?

What is thermal motion of free electrons ? Why does it not amount to any current ?

What is drift velocity of free electrons ? Deduce I = n A eV_(d) where the symbols have their usual meaning.

What are the possible paths of free electrons inside the conductor ?

What are the possible paths of free electrons inside the conductor ?