Capacitor

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