Determine phasor

Discussion in 'Homework Help' started by rogerloh4.0, Nov 9, 2012.

  1. rogerloh4.0

    Thread Starter New Member

    Sep 26, 2012
    10
    0
    Q: Determine the phasor current I1 and I2 in the circuit of the figure

    Ans: I1=3.578\angle86.57^{\circ}

    Following is my solution, I don't know what I have done wrong, but the answer is different with the ones provided by the book.

    20\angle60^{\circ}=(5+j5)I1-j6I2+j3I2-j6I1=(5-j)I1-j3I2

    j2I2-j6I1+j3I1=0

    j2I2=j3I1

    (5-j5.5)I1=20\angle60^{\circ}

    That should lead me to I1=2.69\angle107.726^{\circ}

    Did I did anything wrong? Please help!
     
    Last edited: Nov 9, 2012
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