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    big p's Avatar
    big p Posts: 2, Reputation: 1
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    #1

    Feb 29, 2008, 11:08 AM
    Electrical
    Why is it electrical power is normally transmitted at high voltage?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Feb 29, 2008, 11:19 AM
    Raising the volatge means the current required is reduced (since P=iV). Reducing current allows for a smaller diameter conductor and reduces the loss of power to I^2R heating along the transmission line.
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