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The ratios of the voltage sensitivities, resistances and areas of the coils of two moving coil galvanometers A and B are 4:3, 3:4 and 1:2 respectively. If the number of turns of the coil of galvanometer A is 200, then the number of turns of the coil of galvanometer B is (All other quantities remain same in both the cases)

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For comparison problems, it's best to start with the main formula ($S_V = NAB/kR$) and derive the proportionality for the quantities that are changing ($S_V \propto NA/R$). Then, set up a ratio equation to solve for the unknown.

Updated On: Mar 30, 2026

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The Correct Option is A

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The Correct Option is A

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