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What is the difference between resistance and resistivity ?

  1. Jun 17, 2011 #1
    What is the difference between resistance and resistivity ??

    I have studied that the electric resistance is directly proportional to length of material and inversely proportional to area of cross section . In this resistivity becomes constant and determines conductivity by sign "rho" . What is it exactly ??
     
    Last edited by a moderator: Jun 17, 2011
  2. jcsd
  3. Jun 17, 2011 #2
    Re: What is the difference between resistance and resistivity ??

    It is the property of the material that will define the resistance once the shape is known.

    If you make the same shape out of another material (with different rho) the resistance will be different.
     
  4. Jun 17, 2011 #3

    Doc Al

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    Staff: Mentor

    Last edited by a moderator: Apr 26, 2017
  5. Jun 17, 2011 #4
    Re: What is the difference between resistance and resistivity ??

    That is more like it .

    Please do add me and can you teach me about it more if you are free ??
     
    Last edited by a moderator: Jun 17, 2011
  6. Jun 17, 2011 #5
    Last edited by a moderator: Apr 26, 2017
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