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Frequency in a circuit using complex notation

  1. May 7, 2012 #1
    1. The problem statement, all variables and given/known data

    The frequency, ω, of the source in the circuit of Figure 2 is adjusted until ig is in phase with vg.

    (a)using complex notation, determine the value of ω (rad/sec)
    (b)if vg = 20 sin ω t [where ω is the frequency found in 2(a)], determine an expression for the output voltage, v0



    2. Relevant equations



    3. The attempt at a solution
    See attached attempt on Question A & B - can someone advise if it looks right?
     

    Attached Files:

  2. jcsd
  3. May 7, 2012 #2

    gneill

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    Staff: Mentor

    I think your frequency ended up being one order of magnitude too high. Check your math.
     
  4. May 9, 2012 #3
    Thanks gneill.
    Ah so where I have 10 to the power of 8, it should be to the power of 6?
     
  5. May 9, 2012 #4

    gneill

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    Staff: Mentor

    Well, you've got both 106 and 108 in the relevant area of your work, so you really should be more specific. But yes, that is the issue.
     
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