A) \[\frac{4}{5}\Omega \]
B) 1.5 \[\Omega \]
C) 1.25 \[\Omega \]
D) 0.5\[\Omega \]
Correct Answer: D
Solution :
\[r=R\left( \frac{{{l}_{1}}}{{{l}_{2}}}-1 \right)=2\left( \frac{125}{100}-1 \right)\] \[=2\left( \frac{5}{2}-1 \right)=2\times \frac{1}{4}=0.5\,\Omega \]You need to login to perform this action.
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