For those who like it simple here is Ohm's law in pictures
With the power equation thrown in for free.
clever, yes. but simple?
Nice. Indeed a picture is worth 0.9765625K words.
This is good! 
Ohm's Law In Pictures 2
(edit - The equals sign, equality sign, or "=" is a mathematical symbol used to indicate equality. It was invented in 1557 by Robert Recorde. I tried to insert his picture into the equation but am having difficulties.)
(edit - OK, I think it's working now. Before, the pictures would disappear when I logged off.)
