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Yes, gold does conduct electricity. As a metal, it conducts it quite well. The electrical conductivity of a material is expressed in units of siemens per metre (S·m-1). The electrical conductivity of gold is 45.2 × 106 S·m-1 which is not as good as silver (63 × 106 S·m-1) or copper (59.6 × 106 S·m-1), but better than aluminum (37.8 × 106 S·m-1). All of these are orders of magnitude better than poor conductors like water, for example gold is about 10 million times better than sea water (4.8 S·m-1).

Although gold is a better conductor than aluminum by about 20%, it is over 7 times as dense, so an aluminum wire is going to conduct almost 6 times better than the same weight of gold wire.

The real advantage of gold is that it resists corrosion and so does not become coated in poor conducting corrosion products, like copper tends to. That is why gold has seen so much use in electrical contacts.

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