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Potential difference across a branch (Kirchhoff's law)
Concepts tested here
- branch-potential-difference
All Questions
2016 Phase II 1 question
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The potential difference $(V_A - V_B)$ between the points A and B in the given figure is:

Walk from A to B subtracting IR drops and the cell emf.

$V_B = V_A - (2\times2) - 3 - (2\times1)$
$\Rightarrow V_A - V_B = 9$ V
