A) \[\text{2 }\Omega \]
B) \[\text{3 }\Omega \]
C) \[\text{4 }\Omega \]
D) \[\text{2}\text{.5 }\Omega \]
Correct Answer: B
Solution :
(b) \[\text{3 }\Omega \] \[\frac{2}{40}=\frac{S}{100-40}\Rightarrow S=3\,\Omega \]
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