Figure shows a conical conducting wire connected to a source of emf. Let $E,v_d,i$ represent the electric field, drift velocity and current at a crosssection of the wire. As one moves from end A to end B of the wire,

Consider the following arrangement of resistors. The currents in various branches are shown. Select the correct alternative(s).

A current enters from A and leaves at B through the network shown. Select the correct alternative(s).

In the circuit shown, current in different branches are marked. Select the correct alternative(s).

In the circuit shown, $R_2$ is varied from zero to infinity, keeping other values constant. Which of the following graphs is/are correct?

In the circuit shown, reading of galvanometer is zero. Select the correct alternative(s).

In the circuit shown, the switch is closed at $t=0$. Select the correct alternatives