A student is working with a $1\mathrm{.}25-$F capacitor, a $5\mathrm{.}50-$F capacitor, and a $6\mathrm{.}40-$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

$1\mathrm{.}25-$F capacitor $$C$5\mathrm{.}50-$F capacitor $$C

$($b$)$

in parallel across the battery

$1\mathrm{.}25-$F capacitor $$C$5\mathrm{.}50-$F capacitor $$C