# Circuit with three capacitors

**Electricity and Magnetism**Level 2

**A**,

**B**and

**C**with capacitances \(C_0,\) \(C_0\) and \(2C_0,\) respectively, and a resistor with resistance

**R**. The voltage of the power supply, \(V,\) is constant. Which of the following statements is correct?

a) When the switch **S** is open, the charged electricity of the capacitor **A** is twice as large as that of the capacitor **B**.

b) When the switch **S** is closed, the charged electricity of the capacitor **C** is twice as large as that of the capacitor **B**.

c) The electric energy charged on the capacitor **A** when the switch **S** is open is the same as that when the switch **S** is closed.