1. The problem statement, all variables and given/known data We connect a capacitor C1 = 8 microfarad to a power supply, charge it to a potential difference V = 120V, and disconnect the power supply (Fig. 24.12). http://imgur.com/7VQDEKo [Broken] 2. Relevant equations 3. The attempt at a solution How are these capacitors in parallel after S is closed? I'm confused on how I'm supposed to differentiate conductors in a series and parallel. I thought they are in a series if the electrons can only travel 1 route between the capacitors and in parallel if they can branch off into multiple routes. In this case, when the switch is closed, the electrons can only travel either on the top or bottom path.