A) 20 Hz
B) 30 Hz
C) 40 Hz
D) 50 Hz
Correct Answer: A
Solution :
(a) 20 Hz Here, \[L=2\,\,H,C=32\,\,\mu F=32\times {{10}^{-6}}F:\] \[R=10\,\Omega \] \[{{\omega }_{r}}=\frac{1}{\sqrt{LC}}=\frac{1}{\sqrt{2\times 32\times {{10}^{-6}}}}=125\,\,rad\,{{s}^{-1}}\] \[{{v}_{r}}=\frac{{{\omega }_{r}}}{2\pi }=\frac{125}{2\times 3.14}=20\,Hz\]You need to login to perform this action.
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