# 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?

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2. ### Markd77 Senior Member

Sep 7, 2009
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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
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Rz is equal
Rz = R1 + R2||(R3+R4||R5) = 443/37

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4. ### Amanda_Riley Thread Starter New Member

May 12, 2010
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so is their only one answer to this then?

5. ### t_n_k AAC Fanatic!

Mar 6, 2009
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Yep - about 11.97 ohms as Jony130 demonstrated.

6. ### bertus Administrator

Apr 5, 2008
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Hello,

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

Bertus

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