Two identical capacitors, have the same capacitance $C$. One of them is charged to potential $V_1$ and the other to $V_2$. The negative ends of the capacitors are connected together. When the positive ends are also connected, the decrease in energy of the combined system is
Two identical capacitors, have the same capacitance $C$. One of them is charged to potential $V_1$ and the other to $V_2$. The negative ends of the capacitors are connected together. When the positive ends are also connected, the decrease in energy of the combined system is
- A
$\frac{1}{4}C\left( {V_1^2 - V_2^2} \right)$
- B
$\frac{1}{4}C\left( {V_1^2 + V_2^2} \right)$
- C
$\frac{1}{4}C{\left( {{V_1} - {V_2}} \right)^2}$
- D
$\frac{1}{4}C{\left( {{V_1} + {V_2}} \right)^2}$
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