Three identical capacitors P, Q and S, each of the capacitance C, are connected to a battery of voltage V, as shown in the figure. If the energy…

Three identical capacitors $\displaystyle P, Q$ and $\displaystyle S$, each of the capacitance C, are connected to a battery of voltage $\displaystyle V$, as shown in the figure. If the energy stored in the capacitor $\displaystyle P$ and total energy stored in the system are $\displaystyle \mathrm{U}_{\mathrm{P}}$ and $\displaystyle \mathrm{U}_{\mathrm{T}}$, respectively, then the ratio $\displaystyle \frac{\mathrm{U}_{\mathrm{P}}}{\mathrm{U}_{\mathrm{T}}}$ is :