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Homework Help: Application of low resistance wire

  1. Aug 2, 2014 #1
    1. The problem statement, all variables and given/known data
    I am currently doing the phy project on length vs resistance of wire. to reduce the power loss in transmission wire, the length of wire must be short, as power loss = (I^2) R... in my experiment , I fixed I (current) ,

    now i am asked to find the application of low resistance wire , but there's too few info on the internet. can someone help by telling me some example of low resistance wire?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Aug 2, 2014 #2


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    I assume that you are talking about high voltage or high tension power lines? Look at increasing the wire diameter, which corresponds to a smaller gauge (AWG). You can also increase the voltage, to transmit the same power with lower current. Finally, you can eliminate resistance altogether by using superconducting wire. This has practical difficulties due to the need for cooling along the entire length.

    Start your research into these three topics.
  4. Aug 3, 2014 #3


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