Thank you very much! :)
(Please don't say anything from gold.org or Wikipedia as I have already viewed those :D)
(Please don't say anything from gold.org or Wikipedia as I have already viewed those :D)
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It pretty much is NOT. Gold is NOT used for it's conductivity.
You can see gold on contacts, like connectors, but that is just a thin plating, and is there for gold's resistance to corrosion.
I think you have a common misunderstanding. Gold is NOT good for conductivity. Copper is much better, and of course gold is expensive. Silver is actually best for conductivity, and in fact was used for winding some coils in WWII due to the copper shortage. Of course after the war, that silver was reclaimed.
resistivity Ag 15.9e-9 Ω-m
resistivity Cu 17.2e-9 Ω-m
resistivity Au 22.14e-9 Ω-m
resistivity Al 28.2e-9 Ω-m
PS, conductivity is 1 / resistivity
PPS, the other two answers are totally irrelevant. Gold plating is used for contacts because gold doesn't oxidize like most other metals. That means gold to gold contacts are always metal to metal. Others, like aluminum or copper, have a surface layer of oxide that has to be scraped away to get a good contact.
You can see gold on contacts, like connectors, but that is just a thin plating, and is there for gold's resistance to corrosion.
I think you have a common misunderstanding. Gold is NOT good for conductivity. Copper is much better, and of course gold is expensive. Silver is actually best for conductivity, and in fact was used for winding some coils in WWII due to the copper shortage. Of course after the war, that silver was reclaimed.
resistivity Ag 15.9e-9 Ω-m
resistivity Cu 17.2e-9 Ω-m
resistivity Au 22.14e-9 Ω-m
resistivity Al 28.2e-9 Ω-m
PS, conductivity is 1 / resistivity
PPS, the other two answers are totally irrelevant. Gold plating is used for contacts because gold doesn't oxidize like most other metals. That means gold to gold contacts are always metal to metal. Others, like aluminum or copper, have a surface layer of oxide that has to be scraped away to get a good contact.
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I believe that gold wire is used to connect integrated circuits (the actual silicon chip) to the package pins
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Audio jacks.
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The connectors on PCI / AGP cards on computers are made with gold.