$A$ battery of $3.0 \ V$ is connected to a resistor dissipating $0.5 \ W$ of power. If the terminal voltage of the battery is $2.5 \ V$,the power dissipated within the internal resistance is $....... \ W$.

Four bulbs $B_1, B_2, B_3$ and $B_4$ of $100\, W$ each are connected to a $220\, V$ main supply as shown in the figure. The reading in an ideal ammeter will be ............... $A$.

In the circuit shown,the energy stored in the capacitor is $n\,\mu J$. The value of $n$ is ..............

In the circuit shown below,the resistances are given (in $\Omega$) and the battery is assumed ideal with an electromotive force (emf) equal to $3.0 \, V$. The resistor that dissipates the most power is

The ammeter reading in the following circuit will be .............. $A$.

An electric iron draws $5\, A$,a $TV$ set draws $3\, A$,and a refrigerator draws $2\, A$ from a $220\, V$ main line. The three appliances are connected in parallel. If all three are operating at the same time,the fuse used should be of ............. $A$. (in $, A$)