Duration of the online course: 7 hours and 21 minutes
4.79
(19)
Build real electrical skills fast with a free online course covering voltage, current, AC/DC, circuits and wiring basics—ideal for beginners and career starters.
In this free course, learn about
How electricity works: charge, current, voltage (potential difference) and energy transfer
Conductors vs insulators; why copper is widely used for wiring
AC vs DC basics; frequency meaning (e.g., 60 Hz reverses polarity 120 times/s)
Ohm’s law and applying it to real loads (e.g., lamps) and series-circuit current calculations
Series vs parallel DC circuits and why home lamps are wired in parallel
Conventional current vs electron flow and how to interpret circuit diagrams
Protection & measurement: fuses, circuit breakers, GFCI, and multimeter use concepts
How key components work: diodes/LEDs, bridge rectifiers, capacitors, inductors, optocouplers
Battery fundamentals: alkaline separator purpose and lead-acid car battery operation
Motor principles: DC motors (commutator), AC induction motors (incl. fan purpose), alternators
Relays and timing relays; solid-state relays advantages over electromechanical relays
Transformers in power transmission; step-up transformers; single/split-phase and 3-phase basics
3-way and 4-way switching and receptacles: hot/neutral/ground roles and jumper/ground terminal
Power & billing: kWh calculations and power factor fundamentals
About the free online course
Understanding electricity opens doors to better DIY decisions, safer work practices, and new career paths in technical trades. This free online course helps you build a strong, practical foundation in electrical engineering basics, with clear explanations designed for beginners who want to move from guesswork to confidence.
You will learn how electricity behaves in real circuits, starting with the essentials behind conductors and insulators, current and voltage, and why materials like copper are widely used. Along the way, you will connect the concepts to everyday electrical protection and measurement, gaining familiarity with tools and components commonly seen in residential, automotive, and industrial environments.
As you progress, you will develop the ability to reason through circuit behavior using key principles such as Ohm’s law, conventional current versus electron flow, and the differences between series and parallel connections. These ideas become especially valuable when you start interpreting why devices behave the way they do, troubleshooting simple problems, or planning basic wiring tasks more thoughtfully.
The course also bridges core theory with the components that power modern systems. You will build intuition around diodes, inductors, relays, rectifiers, optocouplers, capacitors, and LEDs, understanding what they do and why they matter. You will explore how batteries store and deliver energy, how motors start and run, and how transformers support efficient power transmission—knowledge that translates across many jobs that touch electrical systems.
To round out your foundation, you will work with key power concepts like single-phase versus three-phase electricity, split-phase supplies, grounding, hot/neutral conductors, power factor, energy use in kilowatt-hours, and devices such as VFDs and starters used in motor control. With frequent practice questions to reinforce understanding, you will finish with a clearer mental model of electricity and the confidence to keep learning in the electrician and professional skills pathway.
Course content
Video class: How ELECTRICITY works - working principle10m
Exercise: _What are conductors and insulators?
Video class: Electrical Current Explained - AC DC, fuses, circuit breakers, multimeter, GFCI, ampere18m
Exercise: What is the primary reason for using copper in electrical circuits?
Video class: Voltage Explained - What is Voltage? Basic electricity potential difference10m
Exercise: _What is voltage?
Video class: Ohms Law Explained - The basics circuit theory10m
Exercise: Ohm's Law Application for a Lamp in the US
Video class: Conventional Current v Electron Flow - Electricity explained03m
Exercise: _What is the difference between conventional current and electron flow?
Video class: DC Series circuits explained - The basics working principle11m
Exercise: Calculate the Current in a Series Circuit
Video class: DC parallel circuits explained - The basics how parallel circuits work working principle16m
Exercise: _What is the advantage of wiring lamps in parallel instead of series?
Video class: Diodes Explained - The basics how diodes work working principle pn junction11m
Exercise: What is the main purpose of a diode in a circuit?
Video class: Inductors Explained - The basics how inductors work working principle10m
Exercise: _What is an inductor in an electrical circuit?
Video class: How Batteries Work - Battery electricity working principle19m
Exercise: What is the main purpose of a separator in a typical alkaline battery?
Video class: How does an Electric Motor work? DC Motor explained15m
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 Relays Work - Basic working principle electronics engineering electrician amp14m
Exercise: What is a key advantage of solid-state relays (SSRs) over traditional electromechanical relays?
Video class: How Electric Motors Work - 3 phase AC induction motors ac motor15m
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: Transformers Explained - How transformers work16m
Exercise: What is the primary reason for using transformers in power transmission?
Video class: 3 Way Switches Explained - How to wire 3 way light switch08m
Exercise: _What are the parts needed for the first circuit in the three-way switch lighting circuit design?
Video class: AC Basics: Learn All About Alternating Current04m
Exercise: What is the frequency of AC electricity that causes polarity to reverse 120 times per second?
Video class: How Receptacles Work - The basic working principle explained grounding07m
Exercise: _What is the purpose of the green ground terminal in a receptacle?
Video class: Four Way Switching Explained - How to wire 4 way intermediate light switch08m
Exercise: What term is used in North America for controlling a light with three or more switches?
Video class: What is a kWh - kilowatt hour Calculations Energy Bill06m
Exercise: _If a 60 watt light bulb is switched on for 10 hours, what is the electricity consumption in kilowatt hours?
Video class: How Alternators Work - Automotive Electricity Generator18m
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 A Car Battery Works - basic working principle16m
Exercise: _What is a lead acid car battery and how does it work?
Video class: Power Factor Explained - The basics what is power factor pf11m
Video class: Single Phase Electricity Explained - wiring diagram energy meter10m
Exercise: _What is the purpose of a step-up transformer in the electricity supply system?
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Course comments: Electrical Engineering Basics
Students found the free course insightful, interesting, and informative. Clear explanations with animations made it easy to understand, and many said they learned a lot and liked the app.
PL
PHILLIP LIFHANI Nare
It looks insightful as you go through
DS
David Salako
nice course
MM
Martin Márk Herr
This is a very interesting and informative video series. Everything is explained and animated, making it easy to understand.
MS
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.
MS
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.
MS
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.
Course comments: Electrical Engineering Basics
Students found the free course insightful, interesting, and informative. Clear explanations with animations made it easy to understand, and many said they learned a lot and liked the app.
PHILLIP LIFHANI Nare
It looks insightful as you go through
David Salako
nice course
Martin Márk Herr
This is a very interesting and informative video series. Everything is explained and animated, making it easy to understand.
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.
Muhammad Sadiq Khan
I have learned a lot from this course and this app is great.