i need help solving current using nodal analysis.

Discussion in 'Homework Help' started by vant0210, Feb 9, 2010.

  1. vant0210

    Thread Starter New Member

    Feb 9, 2010
    1
    0
    please guys, help me asap.
     
  2. The Electrician

    AAC Fanatic!

    Oct 9, 2007
    2,281
    326
    You have to show some effort first before you'll get help.
     
  3. count_volta

    Active Member

    Feb 4, 2009
    435
    24
    Do KCL at nodes V2 and V4 and V5 then notice that V3=V5, and that you know V1 = 24V, so you need 3 sets of linear equations. Mess around with algebra, stick it in a 3X3 matrix and you're done. But we expect you to do the work yourself.

    Btw, Just did it myself by hand to prove to myself that I can still do these type of things. Current i should end up being 1.75A, which the circuit simulator confirms.

    I love the values professors in beginning courses give. 1.75A would cause your circuit to catch on fire in real life.
     
    Last edited: Feb 10, 2010
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Perhaps it would be beneficial to take a look at the node voltage method applied to the solution of an example problem such as the one located here in the AAC ebook.

    hgmjr
     
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