If silver is the best conductor of electricity, why is gold used in electronics instead?
In: Engineering
Gold isn’t used because it is very conductive, it is used because it resists oxidation so maintains a clean contact. Silver and copper oxidize over time. Aluminum is good enough as a conductor but it’s oxidation is so tough that it is very hard to get a good contact or solder joint. Basically every reason we don’t use aluminum over copper comes down to oxidation
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