$n$ equal resistors are first connected in series and then connected in parallel. What is the ratio of the maximum to the minimum resistance?

The resistors of resistances $2 \ \Omega$,$4 \ \Omega$,and $8 \ \Omega$ are connected in parallel. The equivalent resistance of the combination will be:

The current $I$ drawn from the $5 \text{ V}$ source will be ............... $A$.

Three identical resistors $R_1 = R_2 = R_3 = R$ are connected as shown to a battery of constant e.m.f. $V$. The power dissipated is:

$A$ cube is formed with ten identical resistances $R$ (thick lines) and two shorting wires (dotted lines) along the arms $AC$ and $BD$ as shown in the figure below. The resistance between point $A$ and $B$ is ........... $\Omega$.

The equivalent resistance between $A$ and $B$ as shown in the figure is $........\,k\Omega$.