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The potential difference between $A$ and $B$ in the following figure is
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2517 Upvotes
Verified Answer
The correct answer is:
$48 \mathrm{~V}$
Applying Kirchhoff's voltage law, we get
$$
\begin{array}{ll}
-V_{A B}+6 \times 2+12+9 \times 2-4+5 \times 2=0 \\
\Rightarrow & -V_{A B}+48=0 \\
\Rightarrow & V_{A B}=48 \mathrm{~V}
\end{array}
$$
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