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Experiment to Determine the Resistivity of a Wire

  1. Sep 19, 2011 #1
    Here is a detailed description of my question:

    http://img829.imageshack.us/img829/3413/physics2.png" [Broken]

    Any help would be greatly appreciated.

    P.S. Diameter of the wire = 0.425mm +/- 0.005mm .
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Sep 19, 2011 #2
    Look for that formula in your book.
  4. Sep 19, 2011 #3
    Do you mean Resistance = ((p x Length) / Area), where p is the Resistivity? If so, that was not my question!
    Last edited: Sep 19, 2011
  5. Sep 19, 2011 #4
    Yeha that looks right.

    EDIT: Wait, something is wrong (not the formula)...

    EDIT2: never mind, I was right. Find the cross sectional area of the wire.
  6. Sep 19, 2011 #5
    Area = 0.04515625 x pi . How is this relevant to the graph?!
  7. Sep 20, 2011 #6
    for learning to graph with excel just google "how to plot a graph in excel"
    google is very powerful search engine. learn to use it for your end. if you learn how to
    use google (there are lot of different ways you can do search) most of the questions
    you get in physics will be easier in the sense that , with right keywords , solutions are easily available. or you can go to the right forums.....
  8. Sep 20, 2011 #7
    Am i overlooking something here? What are you graphing? what is your graph?
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