BLOG 3 - ELECTRICAL CIRCUIT 1

THIS BLOG CONTAIN ABOUT NODE, BRANCHES, LOOP, KCL and KVL.

BRANCHES - represent a single element such a voltage source or a resistor.

NODE - is the point of conduction between two or more branches.

LOOP - is any closed path in a circuit.

Gustav Kirchhoff
Gustav Kirchhoff
Born	Gustav Robert Kirchhoff 12 March 1824 Königsberg, Kingdom of Prussia (present-day Russia)
Died	17 October 1887 (aged 63) Berlin, Prussia, German Empire (present-day Germany)
Residence	Prussia/German Empire
Nationality	Prussian
Fields	Physics Chemistry
Institutions	University of Berlin University of Breslau University of Heidelberg
Alma mater	University of Königsberg
Doctoral advisor	Franz Ernst Neumann
Doctoral students	Max Noether Ernst Schröder
Known for	Kirchhoff's circuit laws Kirchhoff's law of thermal radiation Kirchhoff's laws of spectroscopy Kirchhoff's law of thermochemistry
Notable awards	Rumford medal (1862) Davy Medal (1877)

KIRCHHOFF’S LAW or (KCL) – state that the algebraic sum of current entering a node (or a closed boundary) is zero.

Mathematically, KCL implies that         

 

Where N is the number of branches connected to the node and in is the nth current entering (or leaving) the node.

KIRCHHOFF’S VOLTAGE LAW or (KVL) – states that the algebraic sum of all voltages around a closed path (or loop) is zero.

                                                         

Expressed mathematically, KVL states that

 

Where M is the number of voltages in the loop (or the number branches in the loop)  andVm is the mth voltage.

OVERVIEW:

       On Monday June 30, 2014 our professor Mr. Jay S Villan is not around in our class but they have a substitute professor to take in charge the class of Mr. Jay S. Villan. The take in charge professor give a seat work on our class. On Tuesday we have a laboratory class and our professor give a work to discuss the deferent color of resistor. We get the result of our group calculation using the only the solving and we get the result of the resistor using the digital multimeter. We compared the result using solving and the result of multimeter. The title of experiment in this laboratory experiment is resistor color code and measurement of resistance. On Wednesday this is the start of our discussion and the topic that discussed of our professor is all about node, branches, and loop and the kirchhoff’s law. On Friday our professor give another seat work and this seat work is so hard to solve and get the answer.