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Determine the resistance r if an ammeter...

Determine the resistance `r` if an ammeter shows a current of `I = 5 A` and a voltmeter `100 V`. The internal resistance of the voltmeter is `R=2,500Omega`

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The correct Answer is:
B
Current through voltmeter

`=V/R=100/2500=0.04A`
In parallel current distribution in inverse ratio of resistors. Hence
`4.96/0.04=2500/r`
`:. r=20.16Omega`
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