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Homework Help: What Does This Symbol Mean?

  1. Sep 6, 2007 #1

    What do the two vertical lines (between the one and the R prime) mean? I am pretty sure we haven't covered it yet. Thanks.

    BTW it's from here:

  2. jcsd
  3. Sep 6, 2007 #2


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    A resistance of 1 ohm, in parallel with a resistance of R' ohms...
  4. Sep 6, 2007 #3
    oh, silly me, thanks.
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