Physics · 2019
JEE Main · 9 April 2019, Shift 1 · Q30
A moving coil galvanometer has resistance 50 Ω and it indicates full deflection at 4 mA current. A voltmeter is made using this galvanometer and a 5…
A moving coil galvanometer has resistance $\displaystyle 50 \Omega$ and it indicates full deflection at $\displaystyle 4$ mA current. A voltmeter is made using this galvanometer and a $\displaystyle 5 \mathrm{k} \Omega$ resistance. The maximum voltage, that can be measured using this voltmeter, will be close to :
Official answer
(3)
$\displaystyle 20$ V
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.