The potential difference VA - VB for the...

The potential difference `V_A - V_B` for the circuit shown in fig. is `-(22//x)V.` find the value of x.

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The correct Answer is:

`-22/9 V`

Applying Kirchhoff's first law at `4V` junction
`I=I-1+7I-3=0implies9I=4impliesI=4/9`
`V_(B)=I+2=4/9+2=22/9V`
`V_(A)-V_(B)=-22/5 V`

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