A) \[1.5\]ohm
B) \[2.0\]ohm
C) \[1.8\]ohm
D) \[3.0\]ohm
Correct Answer: D
Solution :
\[r=\left( \frac{{{\ell }_{0}}-{{\ell }_{c}}}{{{\ell }_{c}}} \right)R=\left( \frac{60-30}{30} \right)3=3\Omega \]You need to login to perform this action.
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