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Homework Help: Amplifier's gain

  1. Oct 28, 2012 #1
    An amplifier increases the peak-to-peak voltage of a signal from 1 V to 20 V. What is the amplifier's gain in dB?

    dB = 20 log10 (Vout/Vin)

    In this case dB = 20 log10 (20/1) I'm not sure :/
  2. jcsd
  3. Oct 28, 2012 #2
    Looks like you filled out the equation correctly - just have to 'plug-n-chug'. I get 26dB.
  4. Oct 28, 2012 #3
    yay thanks
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