Question
Calculate the effective resistance between the points A and B in the network shown below in figure.
✓
Answer
For parallel resistance
$
\begin{aligned}
& \frac{1}{ R }=\frac{1}{12}+\frac{1}{6}+\frac{1}{4}=\frac{1+2+3}{12}=\frac{6}{12} \\
& R =2 \Omega
\end{aligned}
$
Now all resistances are in series
$
R=2+2+5=9 \Omega
$
$
\begin{aligned}
& \frac{1}{ R }=\frac{1}{12}+\frac{1}{6}+\frac{1}{4}=\frac{1+2+3}{12}=\frac{6}{12} \\
& R =2 \Omega
\end{aligned}
$
Now all resistances are in series
$
R=2+2+5=9 \Omega
$
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