The currents in different parts of the electric circuit are shown in the following figure. The value of current $i$ is (in $\text{ A}$)

$A$ battery of $10 \;V$ and negligible internal resistance is connected across the diagonally opposite corners of a cubical network consisting of $12$ resistors each of resistance $1 \;\Omega$. Determine the equivalent resistance of the network and the current along each edge of the cube.

In a post office box arrangement used to determine the value of an unknown resistance,the unknown resistance should be connected between:

The figure shows currents in a part of an electric circuit. Then the current $I$ is: (in $A$)

In the arrangement shown in the figure,the current through the $5\,\Omega$ resistor is ............. $A$.

In the given circuit, calculate the potential difference between $A$ and $B$ in $V$.