Impedences and phasor diagrams. Help please.

Discussion in 'Homework Help' started by imperialcollegestudent, Sep 1, 2006.

  1. imperialcollegestudent

    Thread Starter Member

    Aug 30, 2006
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    In trying to construct the phasor diagram for the attached circuit, I am unsure (with regards to the RC circuit) whether I can calculate the combined impedence of the 10K resistor and the 100nF capacitor by simple addition, or by vector addition on a phasor diagram.
     
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  2. Steve1992

    Senior Member

    Apr 7, 2006
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  3. imperialcollegestudent

    Thread Starter Member

    Aug 30, 2006
    14
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    I found nothing in that chapter about phasor diagrams!!
     
  4. n9352527

    AAC Fanatic!

    Oct 14, 2005
    1,198
    4
    Maybe you should go to the library and read a basic circuit book first to get the basic understanding. Something like Boylestad or similar. I'm sure the Imperial College library has them.

    It is much easier, in my opinion, to move forward if you possess the basic understanding.
     
  5. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Look in "Chapter 2: Complex Numbers."
     
  6. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    143
    You will not be able to just add the resistance and impedance because the resistance and capacitive reactance are orthogonal to each other - therefore you will need to construct a phasor diagram and use a little trig calculate the value of the vector.

    This is the chapter thingmaker3 is refering to.

    Dave
     
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