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Find the frequency in an LRC circuit

  1. May 7, 2008 #1


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    w=w0^2 - alpha^2
    and then take the square root of this.

    But I keep getting a negative number and I can't put this under the root symbol. I remeber he discussed this in class but I can't find it in my notes. How do I deal with the negative so I can find the frequency?
  2. jcsd
  3. May 7, 2008 #2


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    Not all RLC circuits will oscillate. If R, L, & C are such that
    alpha > w0
    you get the situation you are describing.
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