Ack... Awesome demonstration. One question about the oxidation underneath the insulation...How does that affect the conductivity of the copper? I can understand it providing more resitance at the point of contact, so it makes sense to clean the end where it's connected, but I don't see how it would make a difference once it's past that point.
Electricity travels around the outside of the wire not through it. So if there is some corrosion on the outside of the each wire strand it causes a lot of resistance. That makes it much harder to get the amps to flow through useing the rest of the clean strands. Reduces the effective size of your 0-1 gauge wire to small wire gauge that heats up and melts.
Skin effect. Not entirely true, but for the most part, it is. I can't really explain much further than that. I had it explained thoroughly once, when I worked in electronics repair, but it was really unnecessary for me to hang onto that info, so it got filed in the circular file of my brain. I'm sure a little creative googling would yeild the results you seek, should one be so inclined.
LOL I knew someone would say that! Yeah that's from college in 2002 so if it lacks soemthing some where I am sorry but that is what I remember from then.
Ah those stupid formulas I remember those. Man I am glad I didn't pursue that line of work.
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