Three capacitors are connected in series to an ideal voltage source and charged. The capacitors are identical except that capacitor x has air between its plates, whereas capacitor y has a dielectric material between its plates. What is the effect of the dielectric material on the total capacitance of the circuit?
1) The total capacitance decreases
2) The total capacitance increases
3) The total capacitance remains the same
4) Cannot be determined without additional information