capacitance and energy stored

Two capacitors, C1 = 5.0 µF and C2 = 12.0 µF, are connected in series, and a 9.0 V battery is connected across them.a) Find the equivalent capacitance, and the energycontained in this equivalent capacitor. (b) Find the energy stored in each individual capacitor.Show that the sum of these two energies is the same as the energy foundin part (a). Will this equality always be true, or does it depend on the number of capacitors and their capacitances?
(c) If the same capacitors were connected in parallel, what potential difference would be required across them so that the combination stores the same energy as inpart (a)?
Which capacitor stores more energy in this situation?


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