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A galvanometer of 100 ohm, full scale 1 mA, is to read 1 A. Shunt needed is about
A1 ohm
B0.1 ohm
C10 ohm
D0.01 ohm
Answer & Solution
Correct answer: B. 0.1 ohm
Rs = Ig G / (I - Ig) = 0.001 x 100 / 0.999 which is about 0.1 ohm.
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