Soda Straw / Series & Parallel Circuits Comparison 1. Blow through a coffee straw then a regular 1. What affects the resistance of a wire or straw. Which has an easier, faster flow rate? resistor? 2. Like straws in series: hold a long soda straw 2. What happens to current as it flows through a (which is 2 short straws in series) and blow series of resistors compared to just one through it. Compare with blowing through 1 resistor? short soda straw. Which has an easier, faster flow rate