Duration of the online course: 2 hours and 52 minutes
4.56
(9)
Understanding how electric motors work is a practical skill that connects theory to real-world troubleshooting, installation, and control. This free online course helps you build solid intuition for the machines that power tools, appliances, pumps, industrial systems, and vehicles. If you are developing professional electrician skills, this training gives you the confidence to explain motor behavior, spot common issues faster, and communicate solutions clearly.
You will explore the core principles behind electromagnetic rotation and then apply them to the most common motor families you will encounter. The course clarifies how three-phase AC induction motors create torque, why cooling and airflow matter, and how typical motor connections complete a circuit. You will also deepen your understanding of DC motors, including the role of commutators and how design choices affect performance, wear, and maintenance.
Beyond the basics, you will connect motor operation to the systems that rely on precise control. Stepper motors are explained in a way that makes position control intuitive, including what is inside the motor and what key internal parts do. Servo motors are examined both in terms of operation and internal feedback, so you understand how accurate movement is achieved and what components support it. Brushless DC motors are covered with a focus on what makes them different from brushed designs and how electronic speed control relates to PWM.
The course also links motors to automotive and practical applications. You will learn how alternators generate electrical power and how that power is used in typical vehicle electrical systems. Starter motors are explained from the inside out, tying components to the job of cranking an engine. Realistic examples like multispeed pumps and single-phase motor capacitors help bridge classroom concepts to equipment you may service in the field.
Short exercises reinforce key ideas so you can verify your understanding as you go. By the end, you will have a clearer mental model of why different motors exist, how they are built, and how control and connections influence what you observe in operation.
Video class: How Electric Motors Work - 3 phase AC induction motors ac motor
15m
Exercise: _What is the purpose of the fan in an induction motor?
Exercise: _What is the purpose of the fan in an induction motor?
Video class: How does an Electric Motor work? DC Motor explained
15m
Exercise: _What is the purpose of the commutator in a DC motor?
Exercise: _What is the function of the commutator in a DC motor?
Video class: How Alternators Work - Automotive Electricity Generator
18m
Exercise: _What type of electricity does an alternator produce and what type of electricity do all the electrical components within the car use?
Video class: How Stepper Motors Work - Electric motor
14m
Exercise: _What is a stepper motor?
Video class: Electrical Motor Connections
06m
Exercise: _What are the two ways to complete the circuit in a three-phase induction motor?
Video class: Electric Motor Build - Make a simple electric motor
13m
Exercise: _What is the purpose of the commutator in a motor?
Video class: Servo Motors, how do they work?
15m
Exercise: _What is the main difference between a DC motor and a servo motor?
Video class: Brushless Motor - How they work BLDC ESC PWM
16m
Exercise: _What is the main difference between a standard DC motor and a brushless motor?
Video class: Induction Motor Basics
08m
Exercise: _What is the purpose of the fan in an induction motor?
Video class: How does an Electric Motor work? (DC Motor)
04m
Exercise: _What is the purpose of the commutator in a DC motor?
Video class: Servo Motor, what's inside?
07m
Exercise: _What is the purpose of the potentiometer in a servo motor?
Video class: Stepper Motor - What's inside?
03m
Exercise: _What is the function of the stator in a stepper motor?
Video class: Have you ever wondered how multispeed pumps work?
03m
Exercise: What is the purpose of the capacitor in a single-phase motor setup?
Video class: Starter Motors, what's inside?
05m
Exercise: _What is the purpose of the commutator plates in the starter motor?
Video class: What is a Stepper Motor?
02m
Exercise: _What is the main advantage of a stepper motor over a standard DC motor?
Video class: How to control a BLDC with an Arduino
03m
Exercise: _What components are needed to control a brushless motor with an Arduino and a potentiometer?
Video class: How to Control a Servo With an Arduino
03m
Exercise: _What is the purpose of connecting the center pin of the potentiometer to port a0 in the arduino circuit for controlling a servo motor?
Video class: Types of Stepper Motor Explained - What are the different types?
04m
Exercise: _What is the difference between the permanent magnet motor and the variable reluctance motor?
Video class: Starter Motor Explained - How a car's electric starter motor works
10m
Exercise: _What is the function of a starter motor in a combustion engine vehicle?
2 hours and 52 minutes of online video course
Digital certificate of course completion (Free)
Exercises to train your knowledge
100% free, from content to certificate
Ready to get started?Download the app and get started today.
Install the app now
to access the course
Over 5,000 free courses
Programming, English, Digital Marketing and much more! Learn whatever you want, for free.
Study plan with AI
Our app's Artificial Intelligence can create a study schedule for the course you choose.
From zero to professional success
Improve your resume with our free Certificate and then use our Artificial Intelligence to find your dream job.
You can also use the QR Code or the links below.
Free CourseSiemens PLC Training
5
(6)
9h42m
32 exercises
Free CourseElectronic Circuits Course
5
(6)
43h25m
49 exercises
Free CourseElectronic Circuit Design Course
5
(2)
9h31m
51 exercises
Free CourseWind Turbines
5
(2)
3h49m
19 exercises
Free CourseEngineering Circuits Analysis
5
(6)
3h11m
20 exercises
Free CourseElectronics - Nanoelectronics: Devices and Materials
4.84
(43)
40h15m
31 exercises
Free CourseElectrical engineering
4.81
(21)
11h53m
20 exercises
Free CourseElectrical - Fabrication of Silicon
4.81
(26)
35h10m
28 exercises
Free CourseBasic electronics
4.79
(19)
6h04m
30 exercises
Free CourseBeginner Electronics
4.78
(82)
5h27m
24 exercises
Thousands of online courses in video, ebooks and audiobooks.
To test your knowledge during online courses
Generated directly from your cell phone's photo gallery and sent to your email
Download our app via QR Code or the links below::.
Carry knowledge in your pocket.
Download the Cursa app.
There are hundreds of free courses available, with a free certificate of completion that is saved in your mobile image gallery.
Download the app to access the Course Completion Certificate for Free.
+ 10 million
students
Free and Valid
Certificate
60 thousand free
exercises
4.8/5 rating in
app stores
Free courses in
video and ebooks
Course comments: How Electric Motors works
Students found the free course amazing, very helpful and informative, with clear explanations that resolved confusion. Ratings were mostly 4–5 stars.
Abduasiis Usman
1e²e
Emmanuel Daniels
very helpful and informative
Jean max Mexime
the course was amazing
Jean max Mexime
the course was amazing
Jean max Mexime
the course was amazing
Nabin Kushbaha
wonderful course.all is confusion are clear.