# ECE 252 Introduction to Electrical Engineering

## Module 10. Sinusoids, Complex Numbers, and Periodic Waves

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

- Identify the components of sinusoidal voltages and currents.
- Set up and solve equations that include complex numbers.

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

- Find the magnitude, angle, frequency, average value, rms value, and power
of a sinusoidal voltage or current.
- Convert complex numbers from rectangular form to polar form.
- Convert complex numbers from polar form to rectangular form.
- Evaluate and reduce complex equations to polar or rectangular form.
- Use a calculator to solve for the complex value of a variable in a set of
complex equations.

#### Assignment:

- Read Lesson 10. [Module Objectives 1-5]
- Watch the videos. [Module Objectives 1-5]
- Solve Tutorials 10 and 10B. [Module Objectives 1-5]
- Solve and submit Homework 10. [Module Objectives 1-5]
- Solve Practice Quiz 10. 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 10. [Module Objectives 1-5]

#### Select an option:

##### Reading

Lesson 10 Sinusoids, Complex Numbers, and Periodic Waves.
[Module Objectives 1-5]

##### Streaming Videos

Video
L10-1 Sinusoids [Module Objective 1]

Video
L10-2 Root-Mean-Square. [Module Objective 1]

Video
L10-3 Complex Numbers. [Module Objectives 2-5]

Video
L10-4 Review. [Module Objectives 1-5]

##### Videos for Download

Video L10-1 Sinusoids. [Module
Objective 1]

Video L10-2 Root-Mean-Square. [Module
Objective 1]

Video L10-3 Complex Numbers.
[Module Objectives 2-5]

Video L10-4 Review. [Module Objectives
1-5]

##### Calculator Help

Below are some links that will help you learn how to use your calculator to
do complex math:

##### Tutorials

Tutorial 10 Sinusoids.
[Module Objective 1]

Tutorial 10B Complex
Numbers. [Module Objectives 2-5]

##### Practice Quiz

Practice Quiz 10 [Module Objectives 1-5]

Practice Quiz 10 Solution [Module Objectives
1-5]