In the circuit shown in the diagram the capacitance of the capacitors $C_1 , C_2$ and $C_3$ are $4\ \mu F$, $6\ \mu F$ and $12\ \mu F$ respectively and the switch $S$ remains closed for a long time. When the switch $S$ is opened, which of the following statements will be correct about the current flowing through the battery $B$ ?

If $A$ and $B$ are identical bulbs which bulbs glows brighter

A fully charged capacitor $C$ with initial charge $q_0$ is connected to a coil of self inductance $L$ at $t = 0$ . The time at which the energy is stored equally between the electric and the magnetic fields is

An inductor $(L = 100\ mH)$, a resistor $(R = 100 \Omega)$ and a battery $(E = 100\ V)$ are initially connected in series as shown in the figure. After a long time the battery is disconnected after short circuiting the points $A $ and $ B$. The current in the circuit $1\ ms$ after the short circuit is

The diagram shows a capacitor $C$ and a resistor $R$ connected in series to an $ac$ source. ${V_1}$ and ${V_2}$ are voltmeters and $A$ is an ammeterConsider               now the following statements

             $I$.Readings in $A$ and $V_2$ are always in phase

             $II$.Reading in $V_1$ is ahead in phase with reading in $V_2$

             $III$.Readings in $A$ and $V_1$ are always in phase which of these statements are/is correct