CAPE Physics Unit 2 · 2012 · Paper 1 · Question Q9

The diagram shows two capacitors of different capacitances, C_1 and C_2, connected in parallel to a d.c. source. Which statement is correct?

1. (A)The effective capacitance C = \frac{C_1 C_2}{C_1 + C_2}
2. (B)The charges on the capacitors are equal.
3. (C)The energy stored by the two capacitors is the same.
4. (D)The potential difference across each capacitor is the same.

This question uses a figure or table from the paper — you'll see it when you practise.