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Resistance from copper wire

Discussion in 'Homework Help' started by matttrix, Mar 7, 2009.

  1. matttrix

    Thread Starter Member

    Mar 6, 2009
    11
    0
    You are required to run 2,000 feet of AWG20 solid copper wire for a new piece of equipment. The remperature at location is 25C (77F). Use formula R=pL/A to determine how much resistance the wire will offer to current flow?

    I am unsure that I did this correct. I used p=10.09 ohm-cmil/ft, found the area of the AWG cable to have area of 5.583x10^-5 ft^2. This game me an answer that seemed way to high (361454415,2 ohms)
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,808
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  3. matttrix

    Thread Starter Member

    Mar 6, 2009
    11
    0
    Thanks for the help. It is greatly appreciated.
     
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