Physics · 2020
JEE Main · 8 January 2020, Shift 2 · Q20
A galvanometer having a coil resistance 100 Ω gives a full scale deflection when a current of 1 mA is passed through it. What is the value of the…
A galvanometer having a coil resistance $\displaystyle 100 \boldsymbol{\Omega}$ gives a full scale deflection when a current of $\displaystyle 1$ mA is passed through it. What is the value of the resistance which can convert this galvanometer into a voltmeter giving full scale deflection for a potential difference of $\displaystyle 10$ V ?
Official answer
(2)
$\displaystyle 9.9 \mathrm{k} \Omega$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.