A Diagram showing the concept a complex <a href="https://en.wikipedia.org/wiki/impedance" class="extiw" title="en:impedance">impedance</a>, <i><b> Z</b></i>. <i>X</i> is the reactance, <i>R</i> is the resistance, <i>θ</i> is the phase, |<i><b>Z</b></i>| is the magnitude of the impedance.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
<span class="int-own-work" lang="en">Own work</span>