The resistance of an ammeter is 13 Omega...

The resistance of an ammeter is `13 Omega` and its scale is graduated for a current upto `100 A`. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto `750 A` by this meter. The value of shunt resistance is

`2kOmega`

`20Omega`

`2Omega` resistance in series with the parallel combination of `3Omega` and `6Omega`

`0.2Omega`

Text Solution

Verified by Experts

The correct Answer is:

`13xx1 00=650xxR`
`rArr R=2Omega`

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