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

The equivalent capacitance of the combination of capacitors shown in the figure between the points $P$ and $N$ is:

In the adjoining figure, the potential difference between $X$ and $Y$ is $60 \ V$. The potential difference between the points $M$ and $N$ will be: (in $V$)

The equivalent capacitance between points $a$ and $b$ in the given circuit is ........ $\mu F$.

An infinite number of identical capacitors,each with a capacitance of $1 \ \mu F$,are connected as shown in the figure. Find the equivalent capacitance between $A$ and $B$ in $\mu F$.

The total charge on the system of capacitors with capacitances $C_{1} = 1\,\mu F$,$C_{2} = 2\,\mu F$,$C_{3} = 4\,\mu F$,and $C_{4} = 3\,\mu F$ connected in parallel is $......\,\mu C$. (Assume a battery of $20\,V$ is connected to the combination.)