if electricity is the transfer of electrons, then the extension cord 'pipe' is actually already loaded, it's just waiting to pass electrons along. No load=no transfer. i could be wrong. ASK! it.
I can tell you are not from the South. Our science books are in question because they don't tell you about God, and how he made electricity. How it works is not for man to ponder, only that God made it.
On the other hand, we are up to 60% graduation rate.