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Prevent rusting by connecting to electricity?

  1. Jan 2, 2010 #1
    My textbook says that we may prevent a water pipe from rusting by connecting a more reactive metal to it with a wire.... so i was thinking that can we prevent it from rusting by just simply connecting it to an electric source since electricity is a running electron flow...
     
  2. jcsd
  3. Jan 5, 2010 #2
    yeah that would work because you would be liberating the oxygen from the metal through electrolysis, so it shouldn't rust
     
  4. Jan 25, 2010 #3

    Doug Huffman

    User Avatar
    Gold Member

    See 'anodic protection' as in the Wikipedia.
     
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