A) \[2A\]
B) \[3.3A\]
C) \[2/\sqrt{5}A\]
D) \[\sqrt{5}A\]
Correct Answer: A
Solution :
\[R=6+4=10\,\Omega \] \[{{X}_{L}}=\omega L=2000\times 5\times {{10}^{-3}}=10\,\Omega \] \[{{X}_{C}}=\frac{1}{\omega C}=\frac{1}{2000\times 50\times {{10}^{-6}}}=10\,\Omega \] \[\therefore \,\,Z=\sqrt{{{R}^{2}}+{{({{X}_{L}}-{{X}_{C}})}^{2}}}=10\,\Omega \] Amplitude of current \[={{i}_{0}}=\frac{{{V}_{0}}}{Z}=\frac{20}{10}=2A\]
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