Physics · 2019
JEE Main · 10 January 2019, Shift 2 · Q18
The actual value of resistance R, shown in the figure is 30 Ω. This is measured in an experiment as shown using the standard formula R =V/I, where V…
The actual value of resistance R, shown in the figure is $\displaystyle 30 \Omega$. This is measured in an experiment as shown using the standard formula $\displaystyle \mathrm{R}=\frac{\mathrm{V}}{\mathrm{I}}$, where V and I are the readings of the voltmeter and ammeter, respectively. If the measured value of R is $\displaystyle 5$% less, then the internal resistance of the voltmeter is :
Official answer
(2)
$\displaystyle 570 \Omega$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.