Find the equivalent capacitance between $A$ and $B$ of the following arrangement:

The equivalent capacitance between $A$ and $B$ is.......$\mu \,F$

In the given circuit,the charge on the $4\, \mu F$ capacitor will be.....$\mu C$.

Three capacitors $2\,\mu F$,$3\,\mu F$,and $6\,\mu F$ are joined in series with each other. What is the minimum effective capacitance in $\mu F$?

$A$ parallel combination of three capacitors of capacities $2C$,$C$,and $C/2$ is connected across a $10 \ V$ battery. All the capacitors are fully charged to charges $Q_1$,$Q_2$,and $Q_3$ respectively. The ratio $Q_1: Q_2: Q_3$ is

Find the equivalent capacitance between the points $A$ and $B$ in the given figure.