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Q.

The galvanometer shown in the figure has resistance 10 Ω. It is shunted by a series combination of a resistance S = 1 Ω and an ideal cell of emf 2V. A current 2A passes as shown.

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a

The reading of the galvanometer is 1A 

b

The reading of the galvanometer is zero 

c

The potential difference across the resistance S is 1.5 V 

d

The potential difference across the resistance S is 2 V 

answer is B, D.

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Detailed Solution

LET X BE THE CURRENT THROUGH ‘S’  

2x=10(2x)x=2A

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