The previous post didn't address coils as a part of electron structures. Coils are certainly important as they factor into generators, motors and inductance of magnetic fields. These fields add up as the coil turns we find the measured inductance increase.
In the beginning a long straight wire requires a magnetic field to be set up. The telegraphers' equation show a series inductance as one of the parasitic parameters impeding signal and power propagation along any transmission medium. As the post yesterday pointed out long thin structures tend to have more inductance.
The telegraphers' equations point to four parasitic parameters. Conductance and inductance factor into coils. Conductance tells us that without a doubt electrons leak out from conductors. Electrons are small and extremely fast so this should be no surprise. Electrons have a high propensity to spin around nuclei outside the wire in the dielectric. This forms the inductance signal and power engineers seek to avoid.
As the number of turns in an inductor increases so does the interaction and the additive curl of this spinning electron field. If the curl of the electron field is substituted for the magnetic field we have a clearer picture of what is really going on. These facts are complicated by topics from other posts. Notably, the Ampere and Faraday equations that Maxwell used complicate things with differing eddy current directions.
This happens due to Lenz's effect. More on that later.
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