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Mixed Combination of Cells

In the part o...

Question

In the part of a circuit shown in Figure, the potential difference $(V_{G} - V_{H})$ between points $G$ and $H$ will be :

A

0 V

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B

15 V

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C

7 V

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D

3 V

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Solution

The correct option is C $7 V$
Current through $1 Ω$ resistance will be 2 A in the upward direction. By calculating voltage drop across each element in branch G - H i.e. $\Rightarrow V_{G} - 2 \times 4 + 3 - 2 \times 2 + 2 \times 1 = V_{H}$
we get value of $V_{G} - V_{H} = 7 V$ . Hence correct option is option C

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