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    Zeboy's Avatar
    Zeboy Posts: 9, Reputation: 1
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    #1

    Nov 7, 2004, 11:46 AM
    Current electricity
    Why metal conduct electricity rather than a wood?THANK YOU!
    urmod4u's Avatar
    urmod4u Posts: 248, Reputation: 4
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    #2

    Nov 11, 2004, 10:14 AM
    In metals, part of the electrons can freely move through the crystal structure. Electrical current is a flow of electrons, and only those "freely moving electrons" can flow of course. Metals are therefore called "conductors".
    In wood, all electrons are tightly bound to the molecules, there are no free electrons that can move around, hence no electron flow or electrical current.
    Wood is therefore called an "insulator".
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