The net resistance between point $P$ and $Q$ in the circuit shown in figure is

In the circuit shown, each resistance is $2 \mathrm{\Omega }$. The potential $V_1$, as indicated in the circuit, is equal to

In the given circuit diagram when the current. reaches steady state in the circuit, the charge on the capacitor of capacitance $C$ will be

The effective resistance between $\mathrm{A}$ and $\mathrm{B}$ in the figure is $\frac{7}{12} \mathrm{\Omega }$ if each side of the cube has $1 \mathrm{\Omega }$ resistance. The effective resistance between the same two points, when the link $\mathrm{AB}$ is removed, is 

The e.m.f. $\mathrm{\epsilon }$ and the internal resistance $r$ of the battery shown in figure are $4.3 \mathrm{V}$ and $10 \mathrm{\Omega }$ respectively. The external resistance $R$ is $50 \mathrm{\Omega }$. The resistance of the ammeter and voltmeter are $2 \mathrm{\Omega }$ and $200 \mathrm{\Omega }$ respectively. If the switch is thrown to the other side, the reading of the ammeter will be

The current through the $6 \mathrm{\Omega }$ resistor shown in the figure is

Resistors, each of value $2 \mathrm{\Omega }$ are arranged as shown in figure. The equivalent resistance between points $\mathrm{A}$ and $\mathrm{B}$ is

In the figure, the current flowing through $2R$ is,