If all resistors are of $9\, \Omega$,then the reading of the ammeter is .......... $A$.

In the figure shown,the total resistance between $A$ and $B$ is ............. $\Omega$.

What will be the equivalent resistance between the two points $A$ and $D$ in the given circuit (in $\Omega$)? (All resistors are $10 \ \Omega$ each.)

Twelve wires each having resistance $2 \Omega$ are joined to form a cube. $A$ battery of $6 \text{ V}$ emf is connected across points $a$ and $c$. The voltage difference between $e$ and $f$ is . . . . . . $\text{V}$.

Find the potential of $J$ with respect to $G$ in $V$.

The current $(I)$ drawn from the battery in the given circuit is (in $A$)