Basic DC Theory
Now we have an equation with only I2, which is the current we are looking for.
This circuit could have been solved simply by using Ohms Law, but we used Kirchhoffs Laws
to show the techniques used in solving complex circuits when Ohms Law cannot be used.
The important information in this chapter is summarized below.
Kirchhoffs Laws Summary
Kirchhoffs voltage law states that the sum of the voltage drops around a
closed loop is equal to the sum of the voltage sources of that loop.
Kirchhoffs current law states that the current arriving at any junction point in
a circuit is equal to the current leaving that junction.
Since voltage and current can be related to energy and charge, then
Kirchhoffs laws are only restating the laws governing energy and charge