AC Electric Circuit Analysis

3 sections | 25 lectures | 3hr 20min

Learn about sinusoids, impedance, admittance, power factor, and complex power with our AC Electric Circuit Analysis online course. Earn 3 PDHs for professional engineers.


Course Description

This course is designed to provide a complete overview of AC electric circuit analysis used in electrical engineering.

In this course you will learn everything about AC electric circuits, from the basics such as what sinusoids are, all the way to key characteristics of AC circuits such as impedance, admittance, power factor, and complex power. The course is divided into the following sections:

  • Course Introduction: We will being in section 1 by giving an introduction to the course, introducing the instructor, and defining the course objectives.
  • AC Steady-State Electric Circuit Analysis: we will begin in section 2 of the course by defining sinusoids and their components, since these are key concepts to understand for further analysis of AC circuits. We will then discuss the voltage-current relationship in resistors, capacitors, and inductors. We will finish the section by defining two important characteristics of AC circuits: impedance and admittance.
  • Power in AC Circuits: having defined the fundamentals of AC circuits, we will then move into power calculations in AC circuits, since this is the starting point for further studies in AC circuits. We will define instantaneous power, root-mean-square (RMS) quantities, power factor, and complex power. Several examples will be solved to illustrate how to analyze AC circuits.

In each section, several examples are solved to illustrate how to analyze practical circuits.

See you in the course!

What You'll Learn

✓ Concepts for AC electric circuit analysis such as admittance and reactance

✓ Power in AC circuits

✓ What root-mean-square (RMS) is and its importance in AC circuits

✓ What power factor is in AC circuits

✓ What complex power is in AC circuits


Preview Lectures

Check out the three lectures below from this course!


Pricing Options

We offer three different pricing options to meet your needs: annual and monthly subscriptions which include access to this and all of our other online courses, and a one-time purchase of this course. All of our courses and subscriptions offer a 30-day 100% money-back guarantee.



Billed monthly

 Access to all courses

 Instructor support

 Mobile app access

 30-day 100% money-back guarantee

 Cancel anytime




Billed annually

 Access to all courses

 Instructor support

 Mobile app access

 30-day 100% money-back guarantee

 Save 25% over the monthly subscription

 Cancel anytime




One time

 Lifetime access to this course only

 Instructor support

 Mobile app access

 30-day 100% money-back guarantee


Course Outline

Not sure if this course covers what you want to learn? Download the full course outline to find out more.

Course Instructor

Ricardo Romero, PE is an Electrical Engineer with over ten years of experience in Power Systems, having worked as a Power Systems Protection Engineer at Schweitzer Engineering Laboratories, Inc. (SEL) and Power Relaying Solutions, PLLC (PRS). He started his own power engineering consulting and online learning business in 2020 – the Romero Engineering Company. He obtained his bachelor’s and master’s degrees in Electrical Engineering from The University of North Carolina at Charlotte, where he specialized in Power Systems, Power Electronics, and Power System Protection and Control. He is a licensed Professional Engineer in Power Systems in the states of Arizona, North Carolina, Pennsylvania, South Carolina, and Virginia.

Frequently Asked Questions

This course grants you 3 PDHs to meet your PE licensing requirements. Please note that the final course exam must be completed and you must obtain a minimum score of 70% to obtain the PDHs.

This course includes 25 lectures, totaling roughly 3.5 hours of video lectures.

Your subscription, whether the annual or monthly options, gives you access to all courses offered by Romero Engineering Co. This includes updates to existing courses as well as any new courses.

This course is designed with three types of students in mind: professional engineers looking to meet their licensing PDH requirements, practicing engineers looking to learn more about AC circuits, and engineering students looking to start learning about AC circuits.

Start Learning Today

If you're ready to start learning about AC electric circuits, let's get started.

Learn About Power Engineering

Stay informed about new online courses, upcoming webinars, and promotions by signing up to our email list.