Coulomb's Law with Two Charged Objects (No Graphs)
This simulation shows you the magnitude and the direction of the force that acts on each of two charged objects due to the other object. Use the sliders or input boxes to change the amount of charge on each of the two objects. Move the charges around and watch how the force vectors change magnitude and direction. The amount of force that acts is shown. The grid spacing is 1 m, and the objects will "snap" into place if placed near an intersection on the grid.