A 1.08 µF capacitor is connected in series with a 2.18 µF capacitor. The 1.08 µF capacitor carries a charge of +11.1 µC on one plate, which is at a potential of 54.0 V.
(a) Find the potential on the negative plate of the 1.08 µF capacitor.
(b) Find the equivalent capacitance of the two capacitors.