A $2\mu \mathrm{F}$ capacitor ${\mathrm{C}}_1$ is first charged to a potential difference of $10 \mathrm{V}$ using a battery. Then the battery is removed and the capacitor is connected to an uncharged capacitor ${\mathrm{C}}_2$ of $8\mu \mathrm{F}$. The charge in ${\mathrm{C}}_2$ on equilibrium condition is $\mu \mathrm{C}$. (Round off to the Nearest Integer)