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In the figure ammeter (i) reads a curren...

In the figure ammeter `(i)` reads a current of `10mA`, while the voltmeter reads a potential difference of `3V`. What does ammeter `(ii)` (in `mA`) read? The ammeters are identical, the internal resistance of the battery is negligible. (Consider all ammeters and voltmeters as non ideal)

Text Solution

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The correct Answer is:
`0006.66`
Since voltmeter reading is `3V` . So `V_(B)=1V` Resistance of ammeter `R_(A)=1/(10xx10^(-3)) Omega=100 Omega`
Applying kirchhoff's first law at junction `AsumI=0`
`(0-x)/100+(4-x)/100+(1-x)/100=0`

`x=5/3` volt
Current through ammeter `=((5//3)//-1)/100A=6.67 mA`
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