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Question: Answered & Verified by Expert
If only $2 \%$ of the main current is to be passed through a galvanometer of resistance $G$, then the resistance of shunt will be
PhysicsCurrent ElectricityJEE Main
Options:
  • A $\frac{G}{50}$
  • B $\frac{G}{49}$
  • C $50 \mathrm{G}$
  • D $49 G$
Solution:
2900 Upvotes Verified Answer
The correct answer is: $\frac{G}{49}$
$i_g=2 \%$ of $i=\frac{i}{50} \Rightarrow S=\frac{G}{(n-1)}=\frac{G}{(50-1)}=\frac{G}{49}$

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