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Homework Help: RMS Voltage

  1. Jun 23, 2007 #1
    I have a question about RMS voltage. I know Vrms is Vpeak/sqrt(2) if the sine wave is centered around 0V, but what if the voltage has a DC offset? Shouldn't this mean the RMS voltage is more?
     
  2. jcsd
  3. Jun 23, 2007 #2

    Dick

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    Sure. It's the square root of the sum of the squares of DC and AC.
     
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