# Equivalent Resistance

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How would I find the equivalent resistance R_ab of the following circuit?

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#### Solution Preview

This is a problem in parallel and series resistors.

You need two equations:

1. Resistors in series (s): Requiv = R1 + R2

2. Resistors in parallel (||): 1/Requiv = 1/R1 + 1/R2 = (R1*R2)/(R1+R2)

The original circuit in text form (omitting units):

5k s {30k || [22.25k s ...

#### Solution Summary

The solution gives step-by-step instructions for finding equivalent resistance of a complex series/parallel circuit of pure resistance. Circuit notation is given solely in text format. No drawings are provided.

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