1. The problem statement, all variables and given/known data Plates of a capacitor have charge 2CE and CE initially. Now the switch S is closed. Which of following statements is true? Assume that the battery, resistor and wires do not have any capacitance. A)There is no change in charge at outer surfaces of the capacitor. B)There is no change in charge at the inner surfaces of the capacitor. C)Charge flowing through the battery is zero. D)Charge flowing through the battery is CE/2. 2. Relevant equations 3. The attempt at a solution When the switch S is open, the charges rearrange as shown in attachment 2. The set up is at a potential E/2 so some charge must flow to bring the capacitor at potential E when the switch is closed. The magnitude of final charges on the inner surface is CE. Hence a charge of CE/2 flows through the battery. But I am unsure what happens to the charge on outer surfaces. I have no idea about what to do with them. :( Any help is appreciated. Thanks!