A galvanometer having a coil of resistance 30 Ω needs 20 mA of cu… | JEE Main 2025 Physics PYQ

MCQEasyJEE Main 2025 · 23 January, Shift 2Cells, EMF & Internal Resistance

A galvanometer having a coil of resistance $30 \, \Omega$ needs $20 \, \text{mA}$ of current for full-scale deflection. If a maximum current of $3 \, \text{A}$ is to be measured using this galvanometer, the resistance of the shunt to be added to the galvanometer should be $\frac{30}{X} \, \Omega$ , where $X$ is:

A
$447$
B
$298$
C
$149$
D
$596$

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