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In Fig. 6.76, the ammeter (I) reads a cu...

In Fig. 6.76, the ammeter `(I)` reads a current of `10 mA`, while the voltmeter reads a potential difference of `3 V`. The ammeters are identical, and the internal resistance of the battery is negligible (consider all ammeters and voltmers as nonideal).

The resistance of ammeter is `m xx 10^(2) Omega`. What is the value of `m` ?

Text Solution

Verified by Experts

The correct Answer is:
`(1)`
`R_(A) =` resistance of ammeter
`1 V - 0 V = (10 mA) R_(A)` or `R_(A) = 100 Omega`
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