A) \[50.0\Omega \]
B) \[10\Omega \]
C) \[36.7\Omega \]
D) \[26.7\Omega \]
Correct Answer: D
Solution :
[d] |
\[\Rightarrow \] A and B are in parallel |
\[\Rightarrow \] \[R'=10+10=20\,\Omega \] |
\[\Rightarrow \] \[\frac{1}{R'}=\frac{1}{R}+\frac{1}{10}=\frac{1}{20}+\frac{1}{10}\] |
\[\frac{1}{R'}=\frac{1+2}{20}\] |
\[R'=\frac{20}{3}\Omega \] |
Now resistances KE, R and FL are in series |
\[\Rightarrow \]\[R''=10+10+\frac{20}{3}=\frac{80}{3}=26.7\,\Omega \] |
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