Question, very simple, copper wire in coil and process

[Jollyrodger1]

Electronics are different, but the copper coil winding, does it require so much wire to properly perform the signal, educated the aud someone, thanks

 

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[RobNC]

This is also a question I've wondered about. I remember back from CB Radio days that SWR or "standing wave" was a deal breaker when too high and you tried to crank the power up. In transformers there are a certain amount of windings present to achieve desired results as well.
Just theorizing here, but seems like there would need to be a certain resistance achieved too within a coil. Very interesting topic here, and would be good to get some more info on this.