# Series or Parallel?

Are these resistors in series or parallel?
http://img196.imageshack.us/img196/1043/seriesparallel.jpg [Broken]

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chroot
Staff Emeritus
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Neither. These two resistors together can be viewed as a three-terminal device. There's no way to combine them into a single resistor via the rules for parallel and series resistors, because that would create a two-terminal device, and it would no longer fit into the circuit.

- Warren

Neither. These two resistors together can be viewed as a three-terminal device. There's no way to combine them into a single resistor via the rules for parallel and series resistors, because that would create a two-terminal device, and it would no longer fit into the circuit.

- Warren
Well, that's true, the two resistors don't combine by the rules for serial or parallel equivalence. I haven't been clever enough in obtaining the sort of ambiguous topology I have in mind, without changing the question.