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In the circuit shown in figure `V_1,V_2,V_3`, and `V_4` voltmeters. If reading of `V_1 =2V`, reading of `V_2 = 4V,` reading of `V_3: = 8V` reading the `V_4` is
A. |
`2sqrt5 V` |
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B. |
`5sqrt2 V` |
C. |
14 V |
D. |
2 V |