This attempts to show the electric potential in the region of two point charges.[br][br]You can rotate and zoom the 3D image on the right.[br][br]Things you can do with the controls on the left:[br][list][*]Adjust the x and y position of each charge.[/*][*]Adjust the amount and type (positive or negative) of charge[/*][*]Turn off and on V[sub]1[/sub] and V[sub]2[/sub] to see the individual surfaces that are added together to make the Total.[br][/*][/list]