Problem with series/parallel circuit

Discussion in 'Homework Help' started by Amanda_Riley, May 12, 2010.

  1. Amanda_Riley

    Thread Starter New Member

    May 12, 2010
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    I have a problem with this series/parallel circuit. How do I find the equivalent series resistance? I assumed R1 + R2|R3 + R4|R5, is this correct?
     
  2. Markd77

    Senior Member

    Sep 7, 2009
    2,803
    594
    I'd calculate the parallel resistance of the 2ohm and 4ohm.
    Put that in series with the 6ohm.
    Put the result in parallel with the 5ohm
    Put that result in series with the 9ohm.
    If your answer is nearly but not quite 12ohms that should be right.
     
  3. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
    1,097
    Rz is equal
    Rz = R1 + R2||(R3+R4||R5) = 443/37
     
  4. Amanda_Riley

    Thread Starter New Member

    May 12, 2010
    22
    0
    so is their only one answer to this then?
     
  5. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Yep - about 11.97 ohms as Jony130 demonstrated.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,646
    2,345
    Hello,

    I have redrawn the schematic a little bit to show you wich resistors are parallel to wich.

    [​IMG]

    Bertus
     
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