So last post I told ya'll that I would discuss KCL and KVL in this post.
First off KCL stands for Kirchhoff Current Law and KVL stands for Kirchhoff Voltage Law.
These laws are named after a German university professor, Gustav Kirchhoff, from 1824-1887.
First let's start with KCL. KCL is the sum of the currents entering a node is equal to the sum of the currents leaving the node.
Here is an example:
Next We have KVL which is the sum of the Voltages in a loop is equal to zero. This is where the passive sign convention and polarity of an element is important.
Here is an Example: V1 is unknown, V2=2 volt, V3=4 volt, and V4=1 volt
For a more in depth explanation of these examples check out
And remember the more you practice the better you will get.