A cell of $emf\;4\,V$ and internal resistance $0.5\,\Omega$ is connected to a $7.5\,\Omega$ external resistance. The terminal potential difference of the cell is $.....\,V$.
NEET 2022, Easy
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TPD $=4-0.5 \times 0.5$
$\qquad =4-0.25$
TPD $=3.75 \text { volt }$
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