Question

The deflection in a moving coil galvanometer is reduced to half, when it is shunted with a 40ohm coil the resistance of the galvanometer is ​

Answer 1

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Answer 2

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The deflection in a moving coil galvanometer is reduced to half, when it is shunted with a resistance 40Ω.

The resistance of the galvanometer is. Solution : The deflection of reduced to half i.e IgI=12=SS+G∴12=4040+G∴G=40Ω.