The equivalent resistance between the points $P$ and $Q$ of the circuit given is

$A$ copper voltameter is connected to a $12 \, V$ source,and $2 \, g$ of copper is deposited in $30 \, min$. If this cell is connected to a $6 \, V$ source,how much copper (in $g$) will be deposited in $45 \, min$?

$A$ coil of $100 \, W, 220 \, V$ is cut into two equal parts and connected in parallel. How much heat in $J$ is produced in $1 \, sec$?

In the circuit shown in the figure,all cells are ideal. The current through the $2 \, \Omega$ resistor is ............ $A$.

What is the total current $I$ (in $A$) drawn from the battery in the given circuit?

The total current supplied to the circuit as shown in the figure by the $5 \, V$ battery is: (in $, A$)