If there are $n$ capacitors,each of capacitance $C$,connected in parallel to a $V$ volt source,then the energy stored is equal to

What is the equivalent capacitance of the system of capacitors between $A$ and $B$?

Explain the necessity of the combination of capacitors and the ways of their connections.

As shown in the figure, a potential of $+1200\, V$ is applied at point $A$, and point $B$ is kept at zero potential. Then the electric potential at point $P$ is.....$V$

Four identical rectangular plates with length,$l = 2 \, cm$ and breadth,$b = \frac{3}{2} \, cm$ are arranged as shown in the figure. The equivalent capacitance between $A$ and $C$ is $\frac{x \varepsilon_{0}}{d}$. The value of $x$ is (Round off to the Nearest Integer).

Three capacitors of capacitances $C_1=2 \mu F$,$C_2=3 \mu F$ and $C_3=5 \mu F$ are connected in series. $A$ potential difference of $155 \ V$ is applied across the combination. Choose the correct option.