You should use the finest magnet wire with many multiple strands or LITZ WIRE to improve L/R time constant and peak current for lowest loss cable. Your discharge rise time will then drop to xx picoseconds. But for conductor pairs use twisted pair Litz wire to reduce CM emissions.
Otherwise, you can jam many radios/mobiles with high rep rates of > 1pps affecting AGC. !!
In most conductors R(f) rises fast and L(f) drops slow from skin effect. This R effect increases more with iron content since it is from Eddy Currents. In DSL and cable modem skin effects change Zo, phase shift and group delay.... Tony
ref wiki
Although the geometry is different, a twisted pair used in telephone lines is similarly affected: at higher frequencies the inductance decreases by more than 20% as can be seen in the following table.
Characteristics of telephone cable as a function of frequency
Representative parameter data for 24 gauge PIC telephone cable at 21 °C (70 °F).
(Hz) R (Ω/km) L (mH/km) G (μS/km) C (nF/km)
1 172.24 0.6129 0.000 51.57
1k 172.28 0.6125 0.072 51.57
10k 172.70 0.6099 0.531 51.57
100k 191.63 0.5807 3.327 51.57
1M 463.59 0.5062 29.111 51.57
2M 643.14 0.4862 53.205 51.57
5M 999.41 0.4675 118.074 51.57
The spectrum of your pulse is not at all like a square wave, since it is not repetitive over a small interval. It is a continuous spectrum rolling off similar to The null of 2nd harmonics of the equivalent pulse of a "square" wave and then rolling off above the 0.35Tr rise time. So resonant frequency and group delay calculations of pulses is very poor and affected by skin effects, even in controlled impedances, making Baseband communication much worse than the discrete equalized channel's of a modem for thruput in bps/Hz .....Tony
However hollow copper tubing with interior flash gold plating works wonders in microwave as does ENIG on stripline and gold-plated aluminum cases for RF circuits and enclosures for microwave. I saw this in '77.
Here is a different skin effect from UV on dielectrics (human skin) and how Sodium Bicarbonate helps prevent cancer. ( also reduce causes/reactions of itching). https://www.cancertutor.com/simoncini/. :):)
For all practical purposes, there is no difference between stranded and solid wire. The only exception is for very high speed signals (>1 GHz), where solid is arguably better.
The main purpose of stranded is to make the wire more flexible, and has nothing to do with AC resistance at high frequencies.
There is something called the Skin Effect, where high frequency signals tend to travel on the surface of the wire. But stranded wire behaves as a solid conductor in this regard, because the electrons can travel freely from one strand to another. Litz Wire, on the other hand, has insulation between the individual strands and so does behave better with high frequency signals (how much better is open for argument). I have never seen a commercial product use Litz Wire (ignoring audiophile people). I'm sure there is a practical use for Litz wire, but suffice it to say that it is rare.
Best Answer
The skin effect is the effective reduction in the cross sectional area of a conductor that carries high frequency AC. The current density is higher on the outside of the conductor than it is an the inside. The actual resistivity of the conductor is still uniform throughout.
Its essentially an example of back emf which is strongest in the middle of the wire produced by the changing magnetic field of the AC.
see http://en.wikipedia.org/wiki/Skin_effect