Three $10 \mathrm{\Omega }, 2 \mathrm{W}$ resistors are connected as shown in the figure. The maximum possible voltage between points $A$ and $B$ without exceeding the power dissipation limits of any of the resistors is

In the circuit shown in the figure potential difference between points $A$ and $B$ is $16 \mathrm{V}$ the current passing through $2 \mathrm{\Omega }$ resistance will be

The variation of terminal potential difference $\left(V\right)$ with current flowing through as cell is as shown

The $\mathrm{emf}$ and internal resistance of the cell are

In the given circuit find reading of ammeter (in A) when capacitor has attained steady state. (Approximate the answer to the nearest integer)

One of the circuits for the measurement of resistance by potentiometer is shown. The galvanometer is connected at point $A$ and zero deflection is observed at length $PJ=30 \mathrm{cm}.$ In second case the secondary cell is changed. Take $E_S=10 \mathrm{V}$ and $r=1\mathrm{\Omega }$ in $1^{\mathrm{st}}$ reading and $E_S=5 \mathrm{V}$ and $r=2\mathrm{\Omega }$ in $2^{\text{nd }}$ reading. In second case, the zero deflection is observed at length $PJ=10 \mathrm{cm}$. What is the resistance $R$ (in ohm)?