Duration of the online course: 11 hours and 53 minutes
4.81
(21)
Strengthen your professional electrician skillset by learning how to think like an electrical engineer when you face real circuits. This free online course builds the foundations that help you move from memorizing rules to understanding what is happening in a circuit, so you can troubleshoot faster, communicate more clearly, and make safer, more reliable decisions on the job or in further study.
You will connect key ideas such as charge, atomic structure, current, and voltage, then see how those concepts become practical tools for circuit analysis. Instead of treating formulas as magic, you will develop intuition for what voltage represents, how current direction is defined in practice, and why conventions matter when you read schematics, calculate power, or interpret measurements. Along the way, you’ll get comfortable with sign conventions for passive components so your calculations stay consistent and your results make sense.
The course focuses on the core building blocks used everywhere in electrical work: ideal resistors and sources, and the laws that govern networks of components. You’ll learn to reason through series and parallel combinations, simplify resistor networks, and use classic approaches like the voltage divider to predict outputs with confidence. By practicing with targeted questions and problem-solving exercises, you’ll reinforce not only the correct equations but also the decision-making process behind choosing them.
As you progress, you’ll apply Kirchhoff’s Current Law and Kirchhoff’s Voltage Law to analyze more complex circuits, including multi-source scenarios, and you’ll see how to set up and solve for unknown currents and voltages. The learning experience also introduces a structured approach to solving circuits using node voltage methods, giving you a repeatable workflow you can bring to new problems—whether you are studying for exams, preparing for an entry-level role, or leveling up your electrical troubleshooting skills.
By the end, you should feel more fluent in circuit terminology, more confident translating diagrams into equations, and better prepared to tackle everyday electrical questions with clarity and accuracy. If you want a practical, beginner-friendly path into electrical engineering concepts with hands-on practice, this course is designed to help you build that foundation step by step.
Video class: Current | Introduction to electrical engineering | Electrical engineering | Khan Academy
09m
Exercise: _What is the atomic number of copper?
Video class: Voltage | Introduction to electrical engineering | Electrical engineering | Khan Academy
02m
Exercise: What is voltage analogous to in the video explanation?
Video class: Current direction | Electrical engineering | Khan Academy
05m
Exercise: What is the conventional direction assigned to electric current?
Video class: Conventional current
03m
Exercise: _What is the conventional current direction?
Video class: Ideal circuit elements | Circuit analysis | Electrical engineering | Khan Academy
06m
Exercise: Which equation represents Ohm's Law for a resistor?
Video class: Ideal sources | Circuit analysis | Electrical engineering | Khan Academy
02m
Exercise: What is the main difference between an ideal voltage source and an ideal current source in terms of an IV plot?
Video class: Circuit terminology | Circuit analysis | Electrical engineering | Khan Academy
08m
Exercise: _What is a node in a circuit?
Video class: Sign convention for passive components | Electrical engineering | Khan Academy
04m
Exercise: Which direction does the current go in passive components using the sign convention?
Video class: Series resistors | Circuit analysis | Electrical engineering | Khan Academy
11m
Exercise: What is the equivalent resistance of three resistors in series with values 100 ohms, 50 ohms, and 150 ohms?
Video class: Parallel resistors (part 1) | Circuit analysis | Electrical engineering | Khan Academy
11m
Exercise: What is the equivalent resistance of two resistors in parallel?
Video class: Parallel resistors (part 2) | Circuit analysis | Electrical engineering | Khan Academy
04m
Exercise: How do you calculate the equivalent resistance of multiple parallel resistors?
Video class: Parallel resistors (part 3) | Circuit analysis | Electrical engineering | Khan Academy
09m
Exercise: What is the parallel combination of two resistors in the special case where they have the same resistance value?
Video class: Simplifying resistor networks | Circuit analysis | Electrical engineering | Khan Academy
08m
Exercise: What is the equivalent resistance of the given circuit?
Video class: Voltage divider | Circuit analysis | Electrical engineering | Khan Academy
06m
Exercise: What is the voltage output of a voltage divider with specific resistors and input voltage?
Video class: Analyzing a resistor circuit with two batteries | Electrical engineering | Khan Academy
09m
Exercise: What is the current through the third resistor in the circuit?
Video class: Kirchhoff's current law | Circuit analysis | Electrical engineering | Khan Academy
06m
Exercise: What does Kirchhoff's Current Law state about a node in an electrical circuit?
Video class: Kirchhoff's voltage law | Circuit analysis | Electrical engineering | Khan Academy
06m
Exercise: What is Kirchhoff's Voltage Law (KVL)?
Video class: Application of the fundamental laws (setup) | Electrical engineering | Khan Academy
08m
Exercise: In circuit analysis, which law states that the sum of the voltages around a loop is zero?
Video class: Application of the fundamental laws (solve) | Electrical engineering | Khan Academy
08m
Exercise: What is the value of i1 in the circuit analysis?
Video class: Node voltage method (steps 1 to 4) | Circuit analysis | Electrical engineering | Khan Academy
09m
Exercise: What is a key step in the Node Voltage Method?
11 hours and 53 minutes of online video course
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Course comments: Electrical engineering
manjunatha dr
god coaching and explanation
sondra york
very well put together.
Yajnananda Yajju
good