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Homework Help: Complex Impedance

  1. Jul 22, 2010 #1
    1. The problem statement, all variables and given/known data
    In a circuit consisting of a capacitor (Voltage across is 3.2V) and a 47[tex]\Omega[/tex]resistor (Voltage across is 4.65V), with a current of 0.0989A and a phase difference between the two voltages being 90', what is the complex impedance for the circuit?

    Unsure of how to work this out, the stated values are ones I have worked out and may not necessarily be useful to this problem.

    2. Relevant equations

    3. The attempt at a solution
    Wouldn't know where to start
  2. jcsd
  3. Jul 22, 2010 #2
    [tex]Z = R +jX=R-j\frac{|V_c|}{|I_c|}[/tex]
  4. Jul 22, 2010 #3
    Thanks a ton, I think I get it now, had to brush up on a bit of my old algebra notes.
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