GEOG 2200 Study Guide - Midterm Guide: Global Scenario Group, Stockholm Environment Institute, Great Transition

Two identical resistors are connected first in series and second in parallel. The equivalent resistances of the two types of connections are, respectively, RS and RP. What is the ratio RS/RP?

Two identical resistors are connected first in series and second in parallel. The equivalent resistances of the two types of connections are, respectively, RS and RP. What is the ratio RS/RP?

A three-way lightbulb can produce 50W, 100W, or150W, at 120V. Such a bulb contains two filaments that canbe connectedto the 120V individually or in parallel. (a) Describe how theconnections to the two filaments aremade to give each of the threewattages. (b) What mustbe the resistance of each filament?