Physics

Problem

Consider the circuit shown. The resistance connected between the junction

A

and

B

60\Omega

including the resistance of the galvanometer. The switches have no resistance when shorted and infinite resistance when opened. All the switches are initially kept open and they are closed as given in column I. Match the condition in column I with the direction of current through galvanometer and the value of the current through the battery in column II.

Column I	Column II
(a) Only switch $S_1$ is closed	(p) Current from A to B
(b) Only switch $S_2$ is closed	(q) Current from B to A
(c) Only switch $S_3$ is closed	(r) Current through the battery is 12.0 A
(d) Only switch $S_4$ is closed	(s) Current through the battery is 15.6 A
	(t) Current through the Galvanometer is 1.2 A

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