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Homework Help: Very Easy Circuit Question

  1. Jan 26, 2007 #1
    I have a simple question regarding my PPT notes for class, it's not a homework question.

    Each of the two circuits in the image.. the voltage across the two terminals coming out of the external circuit also appears across the a and b terminals on the right... why is that?
     

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  2. jcsd
  3. Jan 27, 2007 #2
    Because there is no resistance between the terminals of the external circuit and the a/b terminals, and consequently no voltage drop.
     
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