A) \[5\,\Omega \]
B) \[25\,\Omega \]
C) \[125\,\Omega \]
D) \[625\,\Omega \]
Correct Answer: B
Solution :
The impedance of the LCR circuit is given by \[Z=\sqrt{{{R}^{2}}+{{({{X}_{L}}-{{X}_{C}})}^{2}}}\] Or \[Z=\sqrt{{{R}^{2}}+{{({{X}_{L}}-{{X}_{L}})}^{2}}}\] \[=R\] \[(\because {{X}_{L}}={{X}_{C}})\] \[\therefore \] \[Z=25\,\Omega \] \[(\because R=25\,\Omega )\]
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