# ECE 252 Introduction to Electrical Engineering

## Module 2. Resistors in Series and Parallel

Course Objectives/Outcomes: Students who complete this course will be able to:

• Identify the principal elements of electrical circuits.
• State and apply basic circuit laws.

Module Objectives/Outcomes: Students who complete this module will be able to:

1. Calculate the total resistance of a circuit by combining resistors in series and parallel.
2. Calculate the range of possible values of a resistor, given its nominal resistance and its tolerance.
3. Apply the voltage divider equation to calculate the voltage across a resistor.
4. Apply the current divider equation to calculate the current through a resistor.
5. Avoid misapplying the voltage divider equation in circuits with loads.

#### Assignment:

• Read Lesson 2. [Module Objectives 1-5]
• Watch the videos. [Module Objectives 1-5]
• Solve Tutorials 2 and 2A. [Module Objectives 1-5]
• Solve and submit Homework 2. [Module Objectives 1-5]
• Solve Practice Quiz 2. Try to do it in under 20 minutes. [Module Objectives 1-5]
• Check your practice quiz answers against the solution below. [Module Objectives 1-5]
• Now you should be ready for Quiz 2. [Module Objectives 1-5]

#### Select an option:

Lesson 2 Resistors in Series and Parallel. [Module Objectives 1-5]

##### Streaming Videos

Video L2-1 Resistor Basics. [Module Objective 1]

Video L2-2 Series and Parallel Resistors. [Module Objective 1]

Video L2-3 General Method for Finding Resistance. [Module Objective 1]

Video L2-4 Voltage Dividers, Current Dividers, Tolerance, Delta-Wye Transformation. [Module Objectives 2-5]

Video L2-5Review [Module Objectives 1-5]

Video L2-1 Resistor Basics. [Module Objective 1]
Video L2-2 Series and Parallel Resistors. [Module Objective 1]
Video L2-3 General Method for Finding Resistance. [Module Objective 1]
Video L2-4 Voltage Dividers, Current Dividers, Tolerance, Delta-Wye Transformation. [Module Objectives 2-5]
Video L2-5 Review. [Module Objectives 1-5]

##### Tutorials

Tutorial 2 Resistors in Series and Parallel. [Module Objective 1]
Tutorial 2A Voltage and Current Dividers. [Module Objectives 3-5]

##### Practice Quiz

Practice Quiz 2. [Module Objectives 1-5]
Practice Quiz 2 Solution. [Module Objectives 1-5]