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Magnetically coupled circuit problems

  1. Aug 15, 2010 #1
    2j1tvki.jpg

    In this circuit i have got the following mesh equations :

    mesh 1:

    jI1+6jI2=12


    mesh 2:

    (j10+5-j4)I2+j4I1+2jI1=0

    But in the book there is no j4 present. Why is that ?? I have tried with the -j4 term and the answer is not right. please help

    4los5g.jpg

    Here is mesh 1:

    (20+j10)I1-j5I2=60<30

    mesh 2:

    ( j20+j10)I2-j5I1-j10I1=0

    but here in mesh2 why is the term (-2*j5)I2 is missing in the book as i can see the current I2 is in series with them.



    9u6iph.jpg

    MEsh 1 is :

    (20+j10)I1-10jI2+j5I2=0 [i have done]

    (j10+j20-10j)I1+j5I2=0 [by book]

    how comes the (-j5*2) comes as current I1 is not series with those inductors

    MEsh 2 :

    (j20+j10)I2-j10I1+j5I1-(2*j5)I2=1

    but the book left the term (-2*j5)I2 but why ??

    Those are some critical problems i m having. Please help me solving those problems.
    Thanks
     
    Last edited: Aug 16, 2010
  2. jcsd
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