Physics · 2023
JEE Main · 11 April 2023, Shift 1 · Q39
The current sensitivity of moving coil galvanometer is increased by 25 %. This increase is achieved only by changing in the number of turns of coils…
The current sensitivity of moving coil galvanometer is increased by $\displaystyle 25 \%$. This increase is achieved only by changing in the number of turns of coils and area of cross section of the wire while keeping the resistance of galvanometer coil constant. The percentage change in the voltage sensitivity will be:
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle +25 \%$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.