Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance $2000 \,\Omega$ is used to measure the potential difference across $500 \,\Omega$ resister, the reading of the voltmeter will be ............... $V$
JEE MAIN 2022, Medium
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$I=\frac{20}{1000} \,A$
$V_{1}=I \times 400=\frac{20}{1000} \times 400$
$=8 \,V$
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