In the given figure,the value of $V_{0}$ will be $.....V$.

$A$ uniform wire of length $200 \, cm$ is connected to a battery, two resistors and a galvanometer as shown in the figure. The galvanometer shows null deflection when the jockey $J$ is at $80 \, cm$ from point $A$. If the resistor $R_2$ is shunted with $30 \, \Omega$ resistance, the galvanometer shows null deflection when the jockey $J$ is at $100 \, cm$ from point $B$. Then the values of $R_1$ and $R_2$ respectively are

The equivalent resistance between the points $A$ and $B$ in the following circuit is $\frac{x}{5} \Omega$. The value of $x$ is . . . . . . .

The potential difference between $A$ and $B$ in the following figure is (in $V$)

The current drawn from the battery in the given network is (Internal resistance of the battery is negligible). (in $A$)

The figure shows a network of four resistances and three batteries. Choose the correct alternative.