In given circuit find potential difference between $P$ and $Q$ .................. $V$
Medium
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$\mathrm{I}=\frac{3}{3}=1 \mathrm{\,A},$ from kirchoff's rule
$\mathrm{V}_{\mathrm{P}}+1-1=\mathrm{V}_{\mathrm{Q}}$
$\mathrm{V}_{\mathrm{P}}-\mathrm{V}_{\mathrm{Q}}=0$
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