Electrons move from the source, through the load and back to the source?

Question

what are the source of electricity and will they run out of electron since it is being used as the energy to do things

Answer 1

you are mixing up electron and energy, electron is matter (keeping it simple) and their movement is energy. As electrons move through a circuit (source to load and back to source) they loose their momentum, or energy in the process. the source never runs out of electrons, as the number of eltrons leaving the source are equal to the number coming back to it, the difference is that the ones leaving it have energy, and the ones coming back are "exhausted".
Think of this circuit as the water cycle of the world, the water evaporates from the seas, comes to land in form of rain, and then flows back to the sea, all of the water around us has come from the sea, but the sea never runs out of water.

Answer 2

Flow of electrons is solely dependant on the relative potential. A source can act as a drain of electons only when the other terminal is relatively loaded more with the electrons. The possitive charg (+ of the battery) says nothing but its LESS composition of electrons compared to the negative terminal.(-ve)

ANd mind it....none of the Source would ever run out of electrons.....just like....human stupidity! :)

Answer 3

Movement of electrons do work, not electron itself.

Electrons are moved by electric potential difference. Electrons are exist in all matter (atom), so we won't run out of electrons.