Figure (31-E26) shows two identical parallel plate capacitors connected to a battery through a s...

Figure (31-E26) shows two identical parallel plate capacitors connected to a battery through a switch \( S \). Initially, the switch is closed so that the capacitors are completely charged. The switch is now opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant 3 . Find the ratio of the initial total energy stored in the capacitors to the final total energy stored.