I don't find my notes right now, I'll try to use my memory on this.(adsbygoogle = window.adsbygoogle || []).push({});

According to my notes, the impedance of an RLC series circuit is given by [tex]\frac{1}{\sqrt{R^2+\left ( \omega L-\frac{1}{\omega C}\right )^2 }}[/tex].

So when in resonance, [tex]Z=\frac{1}{R}[/tex] instead of [tex]Z=R[/tex].

Also if I recall well, for an RLC parallel circuit, [tex]Z=\frac{1}{\sqrt { \frac{1}{R^2} } +\left ( \omega C-\frac{1}{\omega L}\right )^2 }[/tex] or something close to this, meaning that in resonance Z=R instead of Z=1/R.

Are my notes wrong? Or am I doing something wrong?

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# Impedance of an RLC series circuit when in resonance

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