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A battery of EMF 1.4 V and internal resi...

A battery of EMF 1.4 V and internal resistance `2Omega` is connected to resistor of `100Omega` resistance through an ammeter. The resistance of the ammeter is `(4)/(3)Omega`. A voltmeter is also connected to find potential difference across resistor. The ammeter reacds 0.02 A if resistance of voltmeter is 100x then x is

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The correct Answer is:
2


`R_(eq)=(100xxR)/(100+R)+(4)/(3)+2`
`becauseV=iRimplies1.4=0.02xx((100R)/(100+R)+(4)/(3)+2)`
`R=200Omega`
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