The total current supplied by the battery to the circuit is ............ $A$.

The potential difference between the points $P$ and $Q$ in the electric circuit shown is ................. $V$.

In the figure shown,the capacity of the capacitor $C$ is $2\,\mu F$. The current in the $2\,\Omega$ resistor is ............... $A$.

Twelve wires of equal length and equal cross-sectional area form a cube. If the resistance of each wire is $R$,then the effective resistance between the two ends of a diagonal is:

In the circuit shown,the power developed in the $6\,\Omega$ resistor is $6\,W$. The power developed in the $4\,\Omega$ resistor is .............. $W$.

The resistance of an iron wire is $10\,\Omega$ and the temperature coefficient of resistivity is $5 \times 10^{-3}\,^{\circ}C^{-1}$. At $20\,^{\circ}C$,it carries $30\,mA$ of current. Keeping the potential difference between its ends constant,the temperature of the wire is raised to $120\,^{\circ}C$. The current in milliamperes that flows in the wire is: