The number of free electrons in gold wire is $\"image\"$ per unit volume.

The diameter of gold wire From (33353): is $\"\"$ .

$\"\"$ .

The number of electrons in $\"\"$ is $\"\"$ .

The electrons move distance is $\"\"$ .

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$\"\"$ .

The sea of electrons in the wire move to deliver $\"\"$ of charge to an electrode is $\"\"$ .

The number of free electrons in gold wire is per unit volume.