What is the equivalent capacitance between points $A$ and $B$ in the given circuit?

$A$ capacitor of capacitance $1 \ \mu F$ withstands a maximum voltage of $6 \ kV$,while a capacitor of $2 \ \mu F$ withstands a maximum voltage of $4 \ kV$. What maximum voltage will the system of these two capacitors withstand if they are connected in series? (in $kV$)

$A$ $100 \, V$ battery is connected across the series combination of two capacitors of $4 \, \mu F$ and $8 \, \mu F$. The energy stored in the series combination is

In the given capacitor network,$C_1 = 10\,\mu F$,$C_2 = 5\,\mu F$,and $C_3 = 4\,\mu F$. What is the resultant capacitance between $A$ and $B$ in $\mu F$?

Three capacitors,each of capacitance $C$ and breakdown voltage $V$,are connected in series. Find the equivalent capacitance and the equivalent breakdown voltage.

Three capacitors,each of $3\,\mu F$,are provided. These cannot be combined to provide the resultant capacitance of.........$\mu F$