A) \[20\,\Omega \]
B) \[40\,\Omega \]
C) \[60\,\Omega \]
D) \[50\,\Omega \]
Correct Answer: A
Solution :
(a) \[20\,\Omega \] \[{{X}_{L}}=\omega L=2\pi vl\] \[=2\times 3.14\times 159.24\times 20\times {{10}^{-3}}\] \[\Rightarrow {{X}_{L}}=20\,\Omega \]
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