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Complex arithmetic for circuit equation

  1. Mar 25, 2015 #1
    Hi,

    I am trying to find the current of a circuit using mesh analysis so far I have;

    My voltages
    V1 = 415 ∠ 90° or 0 + j415
    V2 = 415 ∠ 0° or 415 + j0

    impedances
    Z1 = j4
    Z2 = j6

    My formula is;

    -V1+Z1*I+Z2*I+V2=0

    Which equates to;

    -0+j415+j4*I+j6*I+415+j0=0

    Could someone tell me how to approach this one?
     
  2. jcsd
  3. Mar 25, 2015 #2

    gneill

    User Avatar

    Staff: Mentor

    Probably easiest to do the straightforward algebra on your loop equation first, solving for I symbolically. Then plug in the complex values and do the complex arithmetic.
     
  4. Mar 25, 2015 #3

    donpacino

    User Avatar
    Gold Member

    Can you post a schematic? We can't help you if we don't know what the circuit looks like.
    What do you need help with, solving for I? If thats the case treat this just like any other algebra problem. Get I on one side of the equation and everything else on the other.

    ex.
    (1+1j)*x-2*j*x+100=0
    x(1-j)=-100
    x=-100/(1-j)
     
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