Thevenin's theorem problem

Thread Starter

Nur Adhyaksa Hamid

Joined Oct 20, 2015
1
Hi guys! Currently i've been learning on circuit principle particularly in Thevenin's theorem. I'm using Ralph J Smith's book but the explanation there is bit confusing. The steps to solved the problem is just hard to remember because it's jump over anything and i thing less systematic than what i found in All About Circuits. Usually, indeed i use Ralph J Smith's procedure. But the procedure is easy to forgotten. So, i search for easier method to remember and i found here.
But, i've found some trouble in here. There are one step that i don't know how to find, that is find R thevenin. Here is the screenshot :
I hope there are someone that will give explanation how to get 0,8Ohm resistor. Thanks.
brao.png
 

Jony130

Joined Feb 17, 2009
4,969
How can you study Thevenin's theorem if you don't know the basics ? This two resistors are connected in parallel, and everyone should know how to find equivalent resistance for this type of a circuit. This is really basic stuff. So you should start here :
https://en.wikipedia.org/wiki/Series_and_parallel_circuits#Resistors_2
http://www.allaboutcircuits.com/textbook/direct-current/chpt-5/what-are-series-and-parallel-circuits/
Or even here if you don't know the Ohm's law:
http://www.allaboutcircuits.com/textbook/direct-current/chpt-2/voltage-current-resistance-relate/
 
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