Two parallel$-$plate capacitors C$1$ and C$2$ are connected in parallel to a $12\mathrm{.}0$ V battery. Both capacitors have the same plate area of $3\mathrm{.}60$ cm$2$ and plate separation of $2\mathrm{.}65$ mm$.$ However, the first capacitor C$1$ is filled with air, while the second capacitor C$2$ is filled with a dielectric that has a dielectric constant of $2\mathrm{.}10.$

$($a$)$ What is the charge stored on each capacitor?

Q$1=$ pC

Q$2=$ pC

$($b$)$ What is the total charge stored on the parallel combination?

pC