Practice Another

Consider the following figure.

$($i$)$

$($a$)$ Find the equivalent capacitance between points a and $b$ for the group of capacitors connected as shown in the figure above. Take $C_1=3\mathrm{.}00F,C_2=15\mathrm{.}0F,$ and $C_3=6\mathrm{.}00F.$

Enter a number. $F$

$($b$)$ What charge is stored on $C_3$ if the potential difference betweerf points a and $b$ is $60\mathrm{.}0$ V $?$

Enter a number. $C$