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Homework Help: What is the effective current?

  1. Jul 9, 2009 #1
    1. The problem statement, all variables and given/known data

    An effective AC voltage of 170 V at 60 Hz
    is applied to an RLC circuit with 20.7 mH
    inductor, 0.162 μF capacitor, and 55.1
    resistor in series.

    a) What is the effective current? Answer in
    units of A.

    b)What is the power factor of the circuit?

    c) What is the power consumed in the circuit?
    Answer in units of W.

    2. Relevant equations

    a) I(rms) = I/sqrt (2), I= emf/Z
    b) power factor = R/Z

    3. The attempt at a solution

    im totally lost i know that those are the related equations but i have difficulties in solving .. since i dont understand this chapter well

    need your help please
  2. jcsd
  3. Jul 9, 2009 #2


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  4. Jul 9, 2009 #3
    thanx i got it now
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