Gold Lowest

Why do you use gold instead of silver for electrical contact? Electrical contacts especially those in computers must be made from materials with a low resistivity. However, gold is used for these contacts rather than silver even though the restitivty of gold is higher then silver. Eplain. the resistivity is not important, as the amount of conductor made of gold is very small. Usually the gold is just a thin plating. Gold is selected because of it's corrosion resistance. Most metals develop a layer of oxide that has a high resistance, but gold does not. Platinum is sometimes used for the same reasons. .

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Cheapest 2.00 cttw 14k Gold AAA Quality Genuine Oval Aquamarine Earring Studs in 14k White Gold
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