Learn about series and parallel electric circuits by using water as an analogy. In this video we answer questions like:

What happens if you use two tubes in parallel?
What happens when the obstructions are added in series?
What's the effect of different obstruction (resistance) sizes?
If a parallel configuration is used, and one obstruction (resistance) is much bigger than the other, does the overall flow rate of the combination of the two tubes change significantly when the size of the large obstruction is varied? How does this apply to two obstructions in series?
What happens when 3 or more obstructions are used?