worksheet help phase change

Discussion in 'General Electronics Chat' started by Dunn12, Oct 27, 2013.

  1. Dunn12

    Thread Starter New Member

    Oct 15, 2013
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    I came across this problem in the "series and parallel ac circuits" worksheet and did not know how to go about it. Can anyone walk me through the problem?
    Determine the input frequency necessary to give the output voltage a phase shift of 40 degrees
    The circuit is an ac voltage source, with a 0.01uF capacitor and a 2900kohm resistor in series with the source (see problem 3 on http://www.allaboutcircuits.com/worksheets/ac_s_p.html)
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    Use the formulas for reactance of a resistor and a capacitor.
    Then use phasor arithmetic to sum the impedance of the resistor and the capacitor.
     
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  3. Dunn12

    Thread Starter New Member

    Oct 15, 2013
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    I was really looking fot those formulas. Thanks anyway.
     
  4. Dunn12

    Thread Starter New Member

    Oct 15, 2013
    3
    0
    "for those formulas"
     
  5. MrChips

    Moderator

    Oct 2, 2009
    12,432
    3,360
    Google reactance.
     
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