$A$ battery of $emf$ $8 \ V$ and internal resistance $0.5 \ \Omega$ is being charged by a $120 \ V$ $dc$ supply using a series resistor of $15.5 \ \Omega$. The terminal voltage of the $8 \ V$ battery during charging is (in $V$)

Three identical batteries are connected in series with a wire of length $L$. The temperature of the wire increases by $T$ in time $t$. If $N$ such batteries are connected in series with a wire of the same material but length $2L$,the temperature increases by the same amount $T$ in the same time $t$. Find the value of $N$.

The potential drop across the $3 \,\Omega$ resistor is ............... $V$.

Calculate the potential difference between points $A$ and $B$ and the current flowing in the $10\,\Omega$ resistor in the network shown below.

In the circuit shown in the figure, if the ammeter and voltmeter are ideal, then the power consumed in the $9 \, \Omega$ resistor will be .......... $W$.

Two identical bulbs,each rated $500 \, W$ and $220 \, V$,are connected in series to a $110 \, V$ supply. What is the power consumed by each bulb?