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Impedance as seen across two terminals

  1. Nov 16, 2013 #1
    1. The problem statement, all variables and given/known data

    All the inductances in Figure P8.2.10 are j10, all the resistances are 10, and all the capacitances are -j12 . Determine the impedance between terminals 'ab'.

    Ans. 27 + j9

    2. Relevant equations



    3. The attempt at a solution

    I figured I should add up the impedances of the capacitors on the left and divide by 2, doing the same for the inductors and the resistors, then finding the equivalent impedance of the parallel connection of the resistors/inductors/capacitors. I keep getting an answer of 540/37 + 90j/37 Ω. Any idea what I might be doing wrong?
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

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  3. Nov 16, 2013 #2

    gneill

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    Staff: Mentor

    Your answer looks correct to me. Maybe they changed component values in the question but didn't update their answer.
     
  4. Nov 16, 2013 #3

    ehild

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    Homework Helper
    Gold Member

    Your solution looks correct.


    ehild
     
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