Duration of the online course: 3 hours and 11 minutes
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Build job-ready circuit analysis skills with a free online course on voltage, current, power, and Kirchhoff’s laws—practice problems that sharpen real troubleshooting.
In this free course, learn about
Core circuit quantities: voltage, current, resistance; how they relate physically
Roles of common components: resistor, capacitor, inductor, diode, transistor, transformer
Ohm’s Law (V=IR) and solving for unknown V, I, or R in simple circuits
Series-circuit analysis: same current, voltage drops, and equivalent resistance
Parallel-circuit analysis: same voltage, branch currents, and equivalent resistance
Electrical power relationships: P=VI, P=I^2R, P=V^2/R; power dissipation in resistors
Kirchhoff’s Current Law (KCL): current conservation at nodes for multi-branch circuits
Kirchhoff’s Voltage Law (KVL): sum of voltages around any closed loop equals zero
Systematic solving of circuits using KCL/KVL to find unknown currents and voltages
Differences between voltage sources and current sources; what each source guarantees
How dependent current sources work and how to set up equations involving control variables
Voltage divider principle and formulas for predicting node voltages in resistor strings
Current divider principle and formulas for splitting source current among parallel resistors
Course Description
Understanding what really happens inside an electrical circuit is a practical skill that supports faster troubleshooting, safer work, and better design decisions. This free online course in Engineering Circuits Analysis is designed to help you move from memorizing formulas to confidently interpreting real circuit behavior. Whether you are stepping into electrician-related roles or strengthening professional skills for technical work, you will learn to connect core theory with the calculations you need on the job.
You begin by clarifying the fundamentals of voltage, current, and resistance, then build toward a working understanding of common circuit components and why they matter in analysis. Along the way, you practice applying Ohm’s Law with clear, realistic scenarios that show how to compute unknown values and verify whether results make sense. Power calculations are treated as more than just math, helping you recognize what power means for components, losses, and safe operation.
A major focus is developing confidence with Kirchhoff’s Current Law and Kirchhoff’s Voltage Law. Instead of treating them as abstract rules, you learn how to use them as a reliable method for breaking down both simple and more complex networks with nodes and loops, including cases with current sources. You will also encounter dependent sources and learn how their values relate to other circuit variables, which is essential for analyzing many practical and educational circuit models.
As you progress, you strengthen your ability to simplify networks using series and parallel resistance, then apply that foundation to voltage divider and current divider reasoning. The built-in exercises reinforce each concept so you can build accuracy, speed, and intuition, making circuit calculations feel consistent and repeatable. By the end, you will be better prepared to analyze circuits logically, justify each step, and approach electrical problems with the structured mindset used in engineering practice.
Exercise: What is the purpose of a resistor in an electric circuit?
Video class: 02 - Overview of Circuit Components - Resistor, Capacitor, Inductor, Transistor, Diode, Transformer45m
Exercise: Which of the following components is used to block electric current in one direction while allowing current to flow in the opposite direction?
Video class: 03 - What is Ohm's Law in Circuit Analysis?39m
Exercise: Given a simple series circuit with a 12V battery source connected to two resistors, R1 and R2, in series where R1 has a resistance of 1 ohm, R2 has a resistance of 2 ohms, and a current of 4A is flowing through the circuit, what is the voltage drop across resistor R2?
Video class: Lesson 4 - Power Calculations In Circuits (Engineering Circuit Analysis)04m
Exercise: What is the correct formula for calculating electrical power in a circuit element?
Video class: Lesson 5 - Kirchhoff's Current Law (Engineering Circuit Analysis)04m
Exercise: What is Kirchhoff's current law (KCL) commonly used for in circuit analysis?
Video class: Lesson 6 - Kirchhoff's Voltage Law (Engineering Circuit Analysis)04m
Exercise: According to Kirchhoff's Voltage Law (KVL), what is the sum of all the voltage drops around any closed path in a circuit?
Video class: Lesson 7 - Circuit Analysis Using Kirchhoff's Laws, Part 1 (Engineering Circuit Analysis)04m
Exercise: According to the principles described in the circuit analysis section, which of the following statements is true when applying Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL) to a series circuit with a 24-volt source and resistors of 2 ohms, 5 ohms, and 1 ohm?
Video class: Lesson 8 - Circuit Analysis Using Kirchhoff's Laws, Part 2 (Engineering Circuit Analysis)04m
Exercise: Which of the following statements correctly applies Kirchhoff's laws to solve for unknowns in a circuit analysis problem?
Video class: Lesson 9 - Circuit Analysis Using Kirchhoff's Laws, Part 3 (Engineering Circuit Analysis)04m
Exercise: In a complex circuit obeying Kirchhoff's laws, if the current entering a node is known to be 1A and the circuit consists of multiple branches and loops, which of the following statements is correct?
Video class: Lesson 10 - Circuit Analysis Using Kirchhoff's Laws, Part 4 (Engineering Circuit Analysis)04m
Exercise: In circuit analysis, when using a current source as opposed to a voltage source, what does the current source guarantee?
Video class: Lesson 11 - Circuit Analysis Using Kirchhoff's Laws, Part 5 (Engineering Circuit Analysis)04m
Exercise: According to Kirchhoff's Voltage Law, which of the following statements is correct for a closed circuit loop?
Video class: Lesson 12 - Circuit Analysis Using Kirchhoff's Laws, Part 6 (Engineering Circuit Analysis)04m
Exercise: In the context of circuit analysis and specifically when applying Kirchhoff's laws to a circuit with multiple resistors, which of the following is not a valid method for calculating the power dissipated by a resistor?
Video class: Lesson 13 - Circuit Analysis Using Kirchhoff's Laws, Part 7 (Engineering Circuit Analysis)04m
Exercise: In a given circuit analyzed by Kirchhoff's laws, if there's a known current of 4 amps flowing through a specific branch, which of the following statements could effectively utilize this information to find the unknown resistance R?
Video class: Lesson 14 - Solving Circuits With Dependent Current Sources (Engineering Circuit Analysis)04m
Exercise: In the circuit analysis video, which component is described as having a current that is not a fixed number but rather dependent on another value in the circuit?
Video class: Lesson 15 - Solving Circuits With Dependent Current Sources, Part 2 (Engineering Circuit Analysis)04m
Exercise: When using Kirchhoff's laws to analyze a circuit with dependent current sources, if V0 is given as 5 volts, which of the following should you calculate in order to proceed with solving for V1 and the source voltage?
Video class: Lesson 16 - Resistors In Series And Parallel, Part 1 (Engineering Circuit Analysis)04m
Exercise: In circuit analysis, how does the current behave in a series resistor network?
Video class: Lesson 17 - Resistors In Series And Parallel, Part 1 (Engineering Circuit Analysis)04m
Exercise: Considering a circuit with resistors in series and parallel combinations, if we have a resistor of 30 ohms in series with a parallel combination of a 60 ohm and a 20 ohm resistor, what is the equivalent resistance of the circuit looking in from terminals A to B?
Video class: Lesson 18 - Voltage Divider Circuits, Part 1 (Engineering Circuit Analysis)04m
Exercise: What is the concept behind a voltage divider in a circuit?
Video class: Lesson 19 - Voltage Divider Circuits, Part 2 (Engineering Circuit Analysis)02m
Exercise: In a circuit containing a voltage source and multiple known resistors arranged in a certain manner, when measuring the voltage across a gap between two resistors and another gap between two other resistors, what fundamental principle allows us to determine the potential difference?
Video class: Lesson 20 - Current Divider Circuits (Engineering Circuit Analysis)03m
Exercise: In a current divider circuit with two parallel resistors R1 and R2, if the total current from the source is Is and it's known that the voltage across each resistor is the same because they are connected in parallel, which of the following expressions correctly relates the current (I1) flowing through resistor R1?
