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Finding Voltage in a Circuit?

  1. Sep 23, 2011 #1
  2. jcsd
  3. Sep 23, 2011 #2

    The Electrician

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    Gold Member

    Imagine that the 4k and 12k were gone; could you calculate the voltage at the node labeled "+"? It's just a voltage divider. Then do the same thing at the node labeled "-" and take the difference of the voltages at the two nodes.
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