# a question about kirchoff's rules

Thread Starter

#### uzi

Joined Aug 14, 2008
1
Hello,
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!

#### studiot

Joined Nov 9, 2007
4,998
Kirchoff's rules are followed by any number of wires greater than 1, meeting at a node. (junctions points are called nodes).

#### blazedaces

Joined Jul 24, 2008
130
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.

-blazed

#### zamansabbir

Joined May 27, 2008
15
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

#### hgmjr

Joined Jan 28, 2005
9,029
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.

hgmjr

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