Q.

In this figure the resistance of the coil of galvanometer G is 2 Ω. The emf of the cell is 4 V. The ratio of potential difference across C1 and C2 is

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a

1

b

34

c

54

d

45

answer is D.

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Detailed Solution

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i=46+2+8=14AVA=4V,VD=0VVB=VAi(6)=414×6=2.5VVC=VBi(2)=2.514×2=2V Across C1,V1=VAVC=42=2V Across C2,V2=VBVD=2.50=2.5VV1V2=22.5=45

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