Kirchhoff's Voltage Law

What is loop?
A loop is any path that goes from node to node and returns to the starting node, passing only once through each node.

Kirchhoff's Voltage Law:

The sum of the voltage drops around any loop equals the sum of the voltage rises.

or

The algebraic sum of all voltage drops around any loop equals zero.

Mathematically,

v1 + v2 + v3 + v4 = 0
or

Parallel Connection:
Two or more elements are in parallel when their terminals are connected to the same pair of nodes.

Also that elements in parallel have the same voltage across each one of them.




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Kirchhoff's Current Law

what is node?

A node is any connection point of two or more circuit elements.

Kirchoff's current law:

The sum of the currents leaving any node equals the sum of the currents entering that node.

or

The algebraic sum of all currents into any node equals zero.

mathematically,

i1 + i4 = i2 + i3

or

Series Connection:
Two or more elements are in series when each node connects just two elements.

Also that elements in series carry the same current.SCYT328STX6Y Read More!