Thevenin's theorem problem

Discussion in 'Homework Help' started by Nur Adhyaksa Hamid, Nov 5, 2015.

  1. Nur Adhyaksa Hamid

    Thread Starter New Member

    Oct 20, 2015
    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.
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    R1//R3 = 4*1/(4+1) = 4/5 = 0.8
  3. Jony130

    AAC Fanatic!

    Feb 17, 2009
    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 :
    Or even here if you don't know the Ohm's law: