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Question
What is the maximum current amplitude at resonance?
Options
\[i_{\max}=\frac{v_m}{X_C+X_L}\]
\[i_{\max}=v_mR\]
\[i_{\max}=\frac{R}{v_m}\]
\[i_{\max}=\frac{v_m}{R}\]
MCQ
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Solution
At resonance, impedance reaches its minimum value of \[R\]. Dividing voltage amplitude by this impedance gives the maximum current amplitude.
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