Four capacitors and a battery are connected as shown in the figure below. The potential drop across the $7 \mathrm{\mu F}$ capacitor is $6 \mathrm{V}$. Choose the incorrect option.

Given that potential difference across $1 \mathrm{\mu F}$ capacitor is $10 \mathrm{V}$. Then,

In the figure shown below, a capacitor of capacitance $2 \mathrm{\mu F}$ is connected to a cell of emf $20 \mathrm{V}$. The plates of the capacitor are drawn apart slowly to double the distance between them. The work done by the external agent on the plates is

Two capacitors of equal capacitance $\left(C_1=C_2\right)$ are shown in the figure. Initially, while the switch $S$ is open, one of the capacitors is uncharged and the other carries charge $Q_0.$ The energy stored in the charged capacitor is $U_0$. Sometimes after the switch is closed, the capacitors $C_1$ and $C_2$ carry charges $Q_1$ and $Q_2$, respectively, the voltage across the capacitors are $V_1$ and $V_2,$ and the energies stored in the capacitors are $U_1$ and $U_2.$ Which of the following statements is incorrect?

In the circuit shown below, each capacitor has a capacitance $C$. The emf of the cell is $E$. If the switch $S$ is closed, then

In the circuit shown in the figure, initially $S$ is open. When the switch is closed, the charge passing through the switch is

Find the charge which flows from point $A$ to $B$ when the switch is closed.