Basics of Resistors

Learn about Resistors, Ohm's and Kirchhoff's Laws

Learn how Resistors work and fundamental laws of Electronics

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Class Curriculum

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Knowledge of Electricity and Electronics is extremely valuable nowadays!

Electronic circuits are everywhere, from computers and smartphones, to home appliances and cars. Think of all the everyday objects that are becoming “smart”... in the future, most of the things that we own will contain some electronics. Jobs in electronics are in high demand and well paid in almost every country!

Building electronic products is incredibly rewarding, whether you do it professionally or just as a hobby. There is just something different and exciting about designing something physical that can be hold in one’s hand and that interacts with the outside world, and today it has become incredibly easy to get started thanks to cheap development boards such as the Arduino and Raspberry Pi, combined with the right knowledge.

Differently than what happens in other disciplines, knowledge of Electronics does not become obsolete, but it is always current as it is intimately connected to physics and to the fundamental laws of nature. Hence, while new components and chips might come along every year, the fundamental principles of Electronics always stay the same.


While most of the material and courses available online tend to be high-level and focused on applications (for instance, it shows students how to connect components on a breadboard to create a circuit), the goal of this course is to explain the fundamental concepts of Electricity and Electronics.


Resistors are fundamental components in electronics. No circuit can function without them. This course will teach you the main properties of resistors, how resistors operate and how to analyze simple electrical circuits with batteries and resistors. Different type of resistors are discussed and used in simple applications.

Through this course, you will learn Ohm’s law, Kirchhoff Voltage and Current laws as well as the Superposition principle and Thevenin equivalent circuits. These are core laws of electronics that I use everyday in my job as electrical engineer and their knowledge is key to be able to solve electrical circuits.


The student is expected to be familiar with the concepts of electric current, voltage, power and some familiarity with the operation of batteries. The course: "Basic Electrical Quantities" is a good preparatory course for the topics explained in this course.

To get the best out of the lessons, students should be comfortable with some basic arithmetic as I will often write and solve equations, in particular when analyzing simple circuits. Understanding a bit of physics can help too, but it is not required.

No special hardware or software is required.

Your Instructor


Hi! I'm Fabrizio. I'm an Electrical Engineer based in Silicon Valley. I have years of experience with hardware product development, circuit board design and, above all, a passion for Electronics and Technology. During my Doctorate I "served" as Teaching Assistant, teaching basic electronics to students in different majors, one of the best experiences of my life! If you want to know more about me, check out my website fabrizioguerrieri.com and my Linkedin profile

Since well before I went to High School, I have always loved breaking things apart, understanding how products work and designing my own electronic projects. At the time there were no many resources available for intrepid young Makers such as myself... while today there is a plethora of tools available and it is so much easier to get started!

Building your own electronic circuit is incredibly rewarding, and I encourage everyone to give it a try. If you are curious about electronics, want to design circuits and really understand how things work, then my courses are for you. Unlike most of the material you can find online which simply teaches you how to put things together, my courses are comprehensive and complete, covering both fundamentals (physics, equations, analysis) as well as applications.

I genuinely believe that my courses are the best on the market and I hope you love them too! Sign up to my courses and join me in this amazing adventure today.

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