Final answer:
The two processes used to coat wire are electroplating, which deposits a metal onto a surface for protection or decoration, and galvanizing, which uses zinc to prevent corrosion.
Step-by-step explanation:
The two processes used to put a coating on wire are electroplating and galvanizing. Electroplating is an electrolytic process where a metal ion is reduced and deposited onto a surface, providing a decorative or protective layer. Common metals used in electroplating include gold, silver, nickel, copper, and chromium. Galvanizing involves applying a protective coating of zinc to prevent corrosion through a process known as cathodic protection. A thin layer of zinc protects galvanized steel by being more difficult to oxidize than the steel itself, or by acting as a sacrificial layer when a more easily oxidized metal is used.