Duration of the online course: 43 hours and 25 minutes
5
(6)
Strong circuit knowledge is a practical advantage for anyone working with electrical installation, maintenance, or electronics troubleshooting. This free online course helps you move from simply memorizing formulas to actually understanding what is happening in a circuit and how to predict results before you pick up the multimeter. You will develop the confidence to interpret real-world behavior in resistive, diode, and basic AC circuits, and to make safer, smarter decisions when designing, repairing, or verifying electrical systems.
You start by grounding your understanding in the essentials: electric current, voltage, and resistance, then connecting those ideas with Ohm’s law and power relationships. From there, the course trains you to analyze series and parallel networks and to apply Kirchhoff’s laws so you can solve multi-branch circuits with a clear, repeatable method. Instead of guesswork, you learn how to approach loop and junction problems logically, calculate expected currents and voltage drops, and check whether results make sense in practical terms.
As you progress, you explore how common components behave under different conditions. You will practice diode circuit analysis and see how forward voltage drop influences current, including typical situations like selecting a resistor for an LED. Power concepts are emphasized throughout, helping you estimate dissipation in resistors, diodes, and LEDs to avoid overheating and failure. The course also connects calculations to everyday electrical cost and consumption, making energy and kWh concepts immediately usable.
The later sections broaden your capability into AC fundamentals, including RMS vs peak values, impedance, reactance, and power factor. You will work with capacitive and inductive behavior and gain intuition for how frequency changes circuit response. Practical conversion topics are also introduced, such as rectification, basic filtering ideas, voltage regulation with Zener diodes, transformer relationships, and inverter power estimates. By the end, you will be better equipped to analyze circuits, size components more responsibly, and communicate electrical reasoning clearly on the job.
Video class: Electric Current
18m
Exercise: A 10 V battery is connected across a 500 ohm resistor What power is dissipated by the resistor
Video class: Voltage Current and Resistance
19m
Video class: Kirchhoff's Voltage Law - KVL Circuits, Loop Rule
23m
Video class: Ohm's Law
14m
Exercise: Total current from an 18 V source feeding parallel branches of 3 Ω, 6 Ω, and 9 Ω
Video class: Series and Parallel Circuits Explained - Voltage Current Resistance Physics - AC vs DC
2h00m
Video class: Kirchhoff's Law, Junction
1h17m
Video class: How To Solve Diode Circuit Problems In Series and Parallel Using Ohm's Law and KVL
27m
Exercise: A 12 V source feeds a forward biased silicon diode with a 0.7 V drop in series with a 5 kΩ resistor. What is the current through the resistor in mA
Video class: How To Select The Resistor Value In a LED Circuit Using Ohm's Law
10m
Video class: Ohm's Law Formula
03m
Video class: Electric Power and The Cost of Electricity Using kWh
08m
Exercise: A device draws 2.3 A from a 120 V AC source. What is the electric power delivered?
Video class: Maximum Power Transfer Theorem Using Nodal Analysis
15m
Video class: Alternating Current vs Direct Current - Rms Voltage, Peak Current
11m
Video class: Capacitive Reactance, Impedance, Power Factor, AC Circuits, Physics
12m
Exercise: Find the capacitive reactance XC for a 50 µF capacitor at 60 Hz.
Video class: Inductive Reactance, Impedance,
12m
Video class: Transformers Physics Problems - Voltage, Current
17m
Video class: 220V AC to 12V DC Converter Power Supply Using Diodes, Capacitors, Resistors,
21m
Exercise: Full-wave bridge rectifier conduction during the negative half-cycle
Video class: Power Dissipation In Resistors, Diodes, and LEDs
15m
Video class: Power Zener Diodes as Voltage Regulators - Circuit Analysis
31m
Video class: Power Inverters - DC to AC Conversion
08m
Exercise: What is the approximate AC output current of a 2000 W inverter with 93% efficiency and 110 V output?
Video class: Resistors In Series - The Easy Way!
12m
Learn Basic Electronics for free! Perfect for aspiring electricians, this course covers essential concepts and skills to jumpstart your career.
Explore free Electrical Engineering courses designed for aspiring electricians. Enhance your skills with comprehensive, practical knowledge and hands-on training.
Explore Electronic Circuit Design with these three free online courses covering essential concepts and practical skills. Enhance your expertise and master the fundamentals at no cost!
43 hours and 25 minutes of online video course
Digital certificate of course completion (Free)
Exercises to train your knowledge
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Course comments: Electronic Circuits Course
Pirmat Islam
awesome course