# Circuit with three capacitors 2

The above diagram is a circuit that consists of three capacitors A, B and C with capacitances $$C_0,$$ $$2C_0$$ and $$2C_0,$$ respectively. The voltage of the power supply is constant. Let $$E_1$$ be the electric energy charged on capacitor A when the switch S is open. Let $$E_2$$ be the electric energy charged on capacitor A when the switch S is closed. Then what is the ratio $$E_1:E_2?$$

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