Explain what would happen if in the capacitor given in 3 mm thick mica sheet (of dielectric constant = 6) were inserted between the plates C=1.771 x 10^-11 F, after the supply voltage of 100 V is was disconnected

Question

$\begin{array}{1 1} 10 V \\ 100\;V \\ 16.7\;V \\ 50\;V\end{array} $