When a fully charged capacitor is connected to an uncharged capacitor with different capacitance, would the p.d. across each of them be the same? I thought that only the charge stored on each would be the same so p.d. across each would depend on their capacitance? Does that mean that they will not have the same p.d.? If they do not have the same p.d., will the sum of their p.d. add up to be the voltage stored in the originally uncharged capacitor?