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If the electrical energy is outside the wires, how is insulation protecting us?
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TimFox:
Even at 60 Hz, skin effect can have a measurable effect on the electrical loss in copper for diameters exceeding, say, 20 mm (500 mcm).
At twice that diameter (2000 mcm copper wire), the resistance at 60 Hz increases by about 23% over that at DC.
aetherist:

--- Quote from: typoknig on April 07, 2022, 02:49:00 pm ---So, rhetorical question, is "current" a measure of energy? 
Since the answer is "yes", how is it that a 10 AWG solid core wire will carry more amperage than a 10 AWG stranded wire, yet the stranded wire has more surface area?
--- End quote ---
1. Do tests show that a solid core will melt (or something) at more Volts than a stranded? 2. Is this for Cu? 3. Is this for DC? 4. Is this for bare wires (ie not insulated)? 5. Is your question aimed at my new (elekton) elekticity theory? If my 5 questions all get a YES, then i might be able to answer your question (in my usual amateurish way).

I suspect that for the same Voltage stranded will result in more Amps, koz it has less resistance than solid.
And if heat loss depends on  I*I*R then stranded  will produce more heat than solid.
U said that solid will carry more amps, but i will ignore that.
If the R of stranded is 9, & solid is 10, & V is 100, then I in stranded is 11, & I in solid is 10, & heat in stranded is 11*11*9, which is 1089, & heat in solid is 10*10*10, which is 1000.
Hence the stranded will/might melt before the solid melts.

Another way of looking at it (depending on how the question is framed). Stranded wire might not carry as much voltage as solid (in some circumstances), koz if the stranded has sharper bends (somewhere along the line) then elektons are more likely to jump away from the stranded & not return, this loss of elektons problem being magnified by the rougher surface of stranded.
aetherist:

--- Quote from: TimFox on April 07, 2022, 03:41:37 pm ---"I don’t like all of the theoretical particles & virtual particles demanded by Quantum stuff."

Another in a series of arguments by several posters that they find something to be "icky" and therefore refuse to deal with it.
--- End quote ---
Can quantum stuff explain how insulation prevents electrocution?
Can quantum stuff explain my new (elekton) elekticity, ie can it explain how a photon can be constrained in 2 dimensions (ie on a surface), ie can it explain that a photon can hug a wire?
TimFox:

--- Quote from: aetherist on April 07, 2022, 10:19:39 pm ---
--- Quote from: TimFox on April 07, 2022, 03:41:37 pm ---"I don’t like all of the theoretical particles & virtual particles demanded by Quantum stuff."

Another in a series of arguments by several posters that they find something to be "icky" and therefore refuse to deal with it.
--- End quote ---
Can quantum stuff explain how insulation prevents electrocution?
Can quantum stuff explain my new (electon) electricity, ie can it explain how a photon can be constrained in 2 dimensions (ie on a surface), ie can it explain that a photon can hug a wire?

--- End quote ---

1.  Quantum solid-state physics describes how insulators work and differ from conductors, so the answer is yes.
2.  Quantum stuff cannot explain nonsensical theories with no experimental evidence to back them, so the answer is no.
typoknig:

--- Quote from: TimFox on April 07, 2022, 03:40:11 pm ---No, "current" is not a measure of energy.
In normal electrical units, the "watt-second" is energy, usually referred to in physics as the "Joule".

--- End quote ---

An excerpt from Wikipedia's Electrical Energy article:  "Electrical energy is energy derived as a result of movement of electrically charged particles."
An excerpt from Wikipedia's Electric Current article: "An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space."

By those definitions and, I would argue, any common definition of "energy", current must be considered energy.  Sorry if I'm being thick Tim (I really want to understand this, that is why I keep asking questions about things that don't seem to jive), but what is it about the definition of energy that makes it not apply to the definition of current, based on your understanding?
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