Hi I am confused about an example in my textbook related to charge stored by a capacitor A 100 uF capacitor and a 700 uF capacitor are placed in series, along with a cell of 3V. Calculate the p.d. across the 100 uF capacitor. The book states the solution as follows: "Using the reciprocal formula, the capacitance of the whole circuit is 87.5 uF. This means the total charge stored Q = VC = 3 * 87.5e-6 = 2.63e-4 The total charge stored is equal to the charge stored by the 100 uF capacitor, which is equal to the charge stored by the 700 uF capacitor. So V = Q/C = 2.63e-4/100e-6 =2.6V" I understand all of this apart from the last section. I understand that the charge stored on both capacitors will be the same, but I do not understand how they can both be equal to the total charge - surely the total charge is the sum of the charges stored on both capacitors? Any help much appreciated.