Skin effect part 3: analytical solution of current density in a wire with circular cross section

In this video i will show you how to find analytical expression for current density in a wire with circular cross section.
the proof is based on the following paper: The Skin Effect by Casimir and Ubbink.
The video a a bit long, so if you don't want to see it, just skip to the end, i quickly pass over all slides so you can pause and read.

Finance:
N=20, subs=440
Available budget (N):
440-100-20*(21+1)=-80
Storage limit:
2^ln(440)=67,96