Network Analysis....

Network analysis are made up of one or more Junctions that are inter-connected in some way.It states that the amount that flows in is equal to the amount that flows out. These networks can be represented into a system of linear equations.

this is an example of a network with one junction. it can be expressed into the equation X1 + X2 = 25
(note the direction of the arrows).

These networks can be used into representing traffic problems, economic problems and with Kirchhoff's Law

Kirchhoff's Law is used when representing Circuits by the use of networks. It states that:

1.The sum of the current that goes in a junction is equal to the amount of current that comes out of it.

2.In a Closed path,the sum of the product of the resistance (ohms) and Current (Amperes) is equal to total voltage (Volts) of the path .

* the direction of the circuit sometimes depend on the battery symbol. the longer side is the output and the shorter side is the input.


example of a network of circuits that applies to Kirchhoff's Law. (note the direction of the circuit).