1. The problem statement, all variables and given/known data I have two capacitors: 1-Farad capacitor A, and 9-Farad capacitor B. In state (a), I charged A with 1 Coulomb of charges, as depicted in figure (a). In state (b), I paralleled A with B, by doing this I discharged A, as depicted in figure (b). I try to find the total energy of state (a) and state (b). From what I have calculated, the system lost 90% of its energy when it goes from (a) to (b). Where does the energy go? 2. Relevant equations [itex]Q=C\phi[/itex] [itex]U=(1/2)C\phi^2[/itex] 3. The attempt at a solution Please refer to the image below.