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Two capacitors, one that has a capacitance of 5 µF and one that has a capacitance...

Two capacitors, one that has a capacitance of 5 µF and one that has a capacitance of 15 µF are first discharged and then are connected in series. The series combination is then connected across the terminals of a 15-V battery. Next, they are carefully disconnected so that they are not discharged and they are then reconnected to each other--positive plate to positive plate and negative plate to negative plate.

(a) Find the potential difference across each capacitor after they are reconnected.
V (5 µF capacitor)
  V (15 µF capacitor)

(b) Find the energy stored in the capacitor before they are disconnected from the battery, and find the energy stored after they are reconnected
µJ (before disconnected)
µJ (reconnected)

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