Doubt in the complex addition

Discussion in 'General Electronics Chat' started by sudharshan.panduranga, Aug 2, 2008.

  1. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
    Hi...can anyone give the solution for complex addition.

    20amps angle 0 deg
    +20amps angle 120 deg
    +20amps angle 240 deg.

    I have converted this to Rectangular form(X+jY) and added. Once again this result is converted to Polar form( r angle theta).
    I got ans=1.652 angle 23.4 deg
  2. silvrstring

    Active Member

    Mar 27, 2008
    Because I can't see your work, I am not sure where you went wrong. Here is the solution, though.

    polar 20A at 0deg = 20 + j0
    polar 20A at 120deg = -10 + j10sqrt(3)
    polar 20A at 240deg = -10 - j10sqrt(3)

    Add them up and you get 0 + j0 = 0A
  3. hgmjr

    Retired Moderator

    Jan 28, 2005
    If you review the material here in the AAC ebook on complex numbers you should be able to clear up any confusion you may be experiencing.