A 16 Ω wire is bend to form a square loop. A 9 V battery with internal resistance 1 Ω is connected across one of its sides. If a 4 μ F capacitor is…

A $\displaystyle 16 \Omega$ wire is bend to form a square loop. A $\displaystyle 9$ V battery with internal resistance $\displaystyle 1 \Omega$ is connected across one of its sides. If a $\displaystyle 4 \mu F$ capacitor is connected across one of its diagonals, the energy stored by the capacitor will be $\displaystyle \frac{x}{2} \mu J$, where $\displaystyle x=$ $\displaystyle \_\_\_\_$.