Physics · 2014
JEE Main · 11 April 2014, Shift 1 · Q30
In the circuit diagrams (A, B, C and D) shown below, R is a high resistance and S is a resistance of the order of galvanometer resistance G. The…
In the circuit diagrams (A, B, C and D) shown below, R is a high resistance and S is a resistance of the order of galvanometer resistance G. The correct circuit, corresponding to the half deflection method for finding the resistance and figure of merit of the galvanometer, is the circuit labelled as :
Official answer
(4)
Circuit D with $\displaystyle \mathrm{G}=\frac{\mathrm{RS}}{\mathrm{R}-\mathrm{S}}$
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.