Total impedance at resonance


Total impedance at resonance, $Z_{T_{p}}$

The total impedance at resonance is now defined by
$$ Z_{T_{p}} \approx R_s || R_p = R_s || Q_l^2 R_l $$
For an ideal current source ($Rs \infty Ω$), or if $R_s >> R_p$, the equation reduces to
$$ \bbox[10px,border:1px solid grey]{Z_{T_{p}} \approx Q_l^2 R_l} $$

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