Three capacitors C1 = 2.5 µF, C2 = 7.5 µF, and C3 = 13 µF are connected as shown with a battery of voltage V = 18 V. (When entering units, use micro for the metric system prefix µ.) (a) What is the equivalent capacitance of this circuit? (b) What is the charge on C1? (c) What is the voltage across each capacitor? V1 = V2 = V3 = (d) What is the charge on C2 and C3? Q2 = Q3 =