What Is Force Between Plates Of Capacitor?

What Is Force Between Plates Of Capacitor? electrostatics electric-fields capacitance gauss-law. As we know that the electric field between two parallel plates of a capacitor is E=σε0. , so the magnitude of force exerted by one plate on the other should have been F=QE. . How do you calculate the force between capacitor plates? F−=QE+,