1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Finding the equivalent resistance b/w a and b

  1. Feb 25, 2008 #1
    1. The problem statement, all variables and given/known data
    The problem is to find the equivalent resistance between a to b.

    2. Relevant equations
    Req in series = R1 + R2 + ... Rn
    Req in parallel = inverse of sum of 1/R1 + 1/R2 + ... 1/Rn
    Kirchhoff's Rules

    3. The attempt at a solution
    Well, I tried redrawing the circuit to figure out which resistors are in parallel and which are in series but it didn't help. The 1 ohm branches off to 9 ohms and 8 ohms; 6 ohms is connected to 8 ohms which forms a series with 3 ohms...(confuses me...). Anyway, I thought I shouldn't be using the Req equations but instead will be using Kirchhoff's rules somehow. I just don't know how to apply it here in this problem. Anyone have any suggestion as to how to start solving it? Thanks in advance

    http://img504.imageshack.us/img504/792/lastproblemme5.jpg [Broken]

    Attached Files:

    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Feb 25, 2008 #2


    User Avatar
    Gold Member

  4. Feb 25, 2008 #3
    Thanks for the link. I have some idea now on how to solve it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook