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We have a galvanometer of resistance 25  Ω It is shunted by a 2.5  Ω wire. The part of total current that flows through the galvanometer is given as

a
igi = 111
b
igi = 110
c
igi = 311
d
igi = 411

detailed solution

Correct option is A

iig =  G+SS  ⇒igi =SG+S = 2.527.5 = 111

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