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Homework Help: Combining Proportionality Statements

  1. Sep 14, 2010 #1
    1. The problem statement, all variables and given/known data

    Combine the proportionality statements for R and d and R and l to form one statement relating R, d, and l.

    2. Relevant equations

    I already know that R∝(1/d squared) and R∝l

    3. The attempt at a solution

    I thought it was R∝ (l/d squared), but that seems too easy lol.

    Please help n_n
    Last edited: Sep 14, 2010
  2. jcsd
  3. Sep 14, 2010 #2


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    Homework Helper
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    Hello qswdefrg,

    Welcome to Physics Forums!
    If by that you mean Rl/(d2), then it certainly sounds reasonable to me. :approve:
  4. Sep 16, 2010 #3
    So it turns out I was right after all! And I finished the assignment.


    I just realized now that this wasn't a physics problem at all; just pure common sense ;___;
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