a question about kirchoff's rules

Discussion in 'Homework Help' started by uzi, Aug 14, 2008.

  1. uzi

    Thread Starter New Member

    Aug 14, 2008
    We all have studied one of the most important laws for analysis of complex circuits known as Kirchoff's rules!
    I have a question about his first rule in which he states that the sum of all currents meeting a single point zero, it is a convention that charges flowing towards a point are taken as positive and that are flowing away are taken as negative. The law is proved by taking four wires. But what happens if we take odd number of wires, suppose if we take five wire of same current which are going to meet a single point, will it follow the kirchoff's first rule?

    thank you!
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    Kirchoff's rules are followed by any number of wires greater than 1, meeting at a node. (junctions points are called nodes).
  3. blazedaces

    Active Member

    Jul 24, 2008
    This is based off of conservation of matter/energy. There is no combination that this won't work. Think about it for a second. It just ... makes sense.

  4. zamansabbir


    May 27, 2008
    think about place where water is coming from a source and is dividing into two groups to go to certain destination. consider the junction where water is divided and thin what happens:
    1. is the total amount of water after dividing into will be decreased or increased or be the same.
    2. think about gate, if three people enter so how many people leave that gate if there is accident takes place there
  5. hgmjr

    Retired Moderator

    Jan 28, 2005
    Take a look at the material on Kirchhoff's Current Law here in AAC's Ebook. Maybe it will shed a bit more light on the subject for you.