In the circuit shown in figure, $R_{1} = R_{2} = R_{3} = 3 Ω$ and e.m.f. of each cell is E = 4V and negligible internal resistance. All ammeters are ideal. Match the following
COLUMN-I COLUMN-II
A)Reading of ammeter $A_{1}$ in ampere is 1)4/3
B)Reading of ammeter $A_{2}$ in ampere is 2)8/3
C)Reading of ammeter $A_{3}$ in amphere is 3) 4
D)Potential difference between point a and point b in volt is 4)zero
5)2

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P-1, Q-2, R-3,S-4

P-1,Q-3,R-2,S-3

P-2,Q-1,R-4,S-5

P-1,Q-2,R-4,S-3

answer is D.

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Detailed Solution

On solving by KVL we get, $i_{1} = \frac{E}{R}, i_{2} = - \frac{E}{R}, i_{3} = \frac{E}{R}$
$\Rightarrow i_{1} - i_{2} = \frac{2 E}{R}$ and $i_{1} - i_{2} = 0$
So, reading of ammeter $A_{1}$ is E/R=4/3
$A_{2}$ is 2E/R = 8/3, $A_{2}$ is zero and $Δ V_{a b} = 4 V$
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COLUMN-I	COLUMN-II
A)Reading of ammeter $A_{1}$ in ampere is	1)4/3
B)Reading of ammeter $A_{2}$ in ampere is	2)8/3
C)Reading of ammeter $A_{3}$ in amphere is	3) 4
D)Potential difference between point a and point b in volt is	4)zero
	5)2