[randywebb]

looks like the paper it sits on tells you what to do?

primer: electricity has to flow in a loop -- it has to get back to where it started.

in your car there is only one wire (called the hot wire) that runs in the electrical circuit (circuit implies loop, right?) because the other 'side' of the loop is the body of the car itself - the Ground

the ground is drawn by convention as several short horizontal lines that are centered over a vertical line - every time you see that it means a ground

in German cars solid brown wires almost always mean they go to a ground point on the body

gt a piece of paper and draw a box on it with 2 lines, one gets a minus sign and goes to ground; the other gets +12 VDC written next to it (that is the battery - the source of electrons that will move in the wires) - it runs to a fuse, and then the switch, and then to the bulb; the bulb is a curly thing (filament) and the other side of it gets a ground symbol -- that's how the electrons get back to the battery

how's that? help at all?
post the diagram they gave you and a more specific question if not.

if this did make sense then we will just skip to Quantum tunneling in PNP junctions.