The potential difference between $A$ and $B$ in the Figure is ................. $V$
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Applying $\mathrm{KVI}$

$\mathrm{V}_{\mathrm{A}}-12-12-18+4-10=\mathrm{V}_{\mathrm{B}}$

$\Rightarrow \mathrm{V}_{\mathrm{A}}-\mathrm{V}_{\mathrm{B}}=48 \mathrm{\,V}$

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