A student is working with a $2\mathrm{.}00-$F capacitor, a $4\mathrm{.}00-$F capacitor, and a $3\mathrm{.}40-$V battery. What is the the charge $($in $$C$)$ on each capacitor if the student connects the capacitors in the following ways.

$($a$)$

in series across the battery

$2\mathrm{.}00-$F capacitor $$C$4\mathrm{.}00-$F capacitor $$C

$($b$)$

in parallel across the battery

$2\mathrm{.}00-$F capacitor $$C$4\mathrm{.}00-$F capacitor $$C