This video builds upon the voltage / current phase relationships that were demonstrated in the previous video:
http://www.youtube.com/watch?v=ykgmKOVkyW0
to show how these lead/lag relationships give rise to the unique properties of series and parallel resonant LC circuits. The voltage and current waveform phases are examined, and it is shown how these waveforms combine at resonance. The result of this paper analysis is also shown live on the oscilloscope. These simple circuits can be used to create frequency selective networks which are useful in filters, oscillators and other AC circuits.
Show Notes:
http://www.qsl.net/w2aew/youtube/LC_Resonance.pdf