The number of turns of the coil of a moving coil galvanometer is increased in order to increase current sensitivity by 50% . The percentage change in voltage sensitivity of the galvanometer will be :

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Current sensitivity = Voltage sensitivity × R If current sensitivity is made 1.5 times, then R also increase 1.5 times. Hence, voltage sensitivity = 1.5 × R 1.5 × current sensitivity ​ = no change.

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