GMC Holding Corporation (fka GMCC)

[chipotle_pickle]

Electrons don't get used up or absorbed.

Electrons leave one end of a circuit at one end at a higher potential and are sucked in at the other end at a lower potential. The potential difference is the "Voltage" of the power source. The rate at which current flows is the "Amps". One Amp is one Coulomb per second. Electrons are not absorbed by electric appliances, rather the appliances have potential drops and the electrons leave energy behind when they go through those drops on their way back to the power source.

This page is really pretty good and doesn't use calculus when it doesn't have to.
http://en.wikipedia.org/wiki/Electrical_network