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An elctrical circuit is shown in Fig. Ca...

An elctrical circuit is shown in Fig. Calculate the potential difference across the resistor of 400 ohm, as will be measured by the voltmeter V of resistance 400 ohm, either by applying Kirchhoff's rules or otherwise.
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Text Solution

Verified by Experts

The correct Answer is:
`20/3 V`
When voltmeter is connected circuit becomes balanced Wheat stone bridge Reading of voltmeter

`V=I_(1)xx200xx(10/(100+200))`
`V=20/3` volt
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