copper wire is a good conductor and it only has one free electron in its valence shell or ring

• copper wire is a good conductor and it only has one free electron in its valence shell or ring

• electrons are forced into one end (pressure or voltage) which continues to push adjacent free electrons from one atom to the next and so on (battery)

• The amount/flow of electrons going though this conductor is known as the current

• The larger the conductor size the more electrons can flow through (less resistance) which is known as the resistance

• Understanding this theory sums up electricity as:

• The controlled and directed flow of free electrons from atom to atom in a conductor