Basic Fundamentals of AC Circuit Analysis

person icon Graham Van Brunt

Basic Fundamentals of AC Circuit Analysis

Electrical sinusoidal waveforms, vectors & phases, reactance & impedance of R,L,C circuits.

updated on icon Updated on Sep, 2023

language icon Language - English

person icon Graham Van Brunt

architecture icon Business,Operations,Electrical Circuits


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Course Description

Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.

The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with the positive direction of the current and vice versa. In certain applications, like guitar amplifiers, different waveforms are used, such as triangular waves or square waves. Audio and radio signals carried on electrical wires are also examples of alternating currents. These types of alternating currents carry information such as sound (audio) or images (video) sometimes carried by modulation of an AC carrier signal. These currents typically alternate at higher frequencies than those used in power transmission.

This course deals specifically with sinusoidal waveforms and will provide the student with a basic understanding of working with circuits involving Alternating Current, which includes sinusoidal waveforms, vectors & phases, reactance & impedance of R, L, C circuits, as they relate to the basic laws and theorems of electricity. This includes working with AC Power, Power Factor, Resonance, Complex Numbers, Reactance, and Impedance

Who this course is for:

  • Anyone wanting to understand the Basic concepts of electricity as it applies to linear AC circuit analysis (resistors, capacitors, and inductors).


What will you learn in this course:

  • This course will provide an understanding of alternating sinusoidal currents.

  • including sinusoidal waveforms,

  • vectors & phases,

  • including reactance & impedance.


What are the prerequisites for this course?

  • The student should have an understanding of the basic fundamentals of electricity and DC circuit analysis.

Basic Fundamentals of AC Circuit Analysis


Check out the detailed breakdown of what’s inside the course

7 Lectures
  • play icon Introduction 04:25 04:25
  • play icon Ch - 1 Alternating Current 33:04 33:04
  • play icon Ch - 2 Vectors & Phasors 36:12 36:12
  • play icon Ch - 3 Reactance and Impedance R, L, C Circuits 53:34 53:34
  • play icon Ch - 4 Kirchhoff's Laws in AC Circuits 08:51 08:51
  • play icon Ch - 5 Power flow in AC Circuits 46:21 46:21
  • play icon Resources

Instructor Details

Graham Van Brunt

Graham Van Brunt

With an entire career in the power sector of engineering, Graham graduated from Queen's University coupled with subsequent studies with Wilfrid Laurier University to travel the globe and apply his skills and garner his protection and control experience internationally. 

His passion for staying in touch with his profession and his kinship for mentoring has kept him in front of an audience of learners.

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