The power charges the wiring in the transformer coil, jumps the gap as magnetism and charges the wiring in the other coil. Obviously as it doesn't have much capacity it won't draw much but the point is the power leaks out in the form of heat, and I guess as ions and general magnetic force. It's not a totally sealed system, so if it contains a charge it will slowly leak it, the National Grid then tops up the charge and it leaks some more.Originally Posted by Ruggerbugger
I don't know the specifics of it but basically your circuit is between the transformer and the environment around it.