Electronics S1W5: Resistors in Series

Resistors can be connected in 1 of 4 configurations. The first of these, series resistors, is covered in this class.
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  • Lectures 10
  • Length 2 hours
  • Skill Level Beginner Level
  • Languages English
  • Includes Lifetime access
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About This Course

Published 4/2015 English

Course Description

Electronics: Resistors in Series S1W5

This Basics Electronics Course will teach you how to solve series resistor circuits. To understand Direct Current (DC) Electronics, you need to master four resistor configurations:

  1. Series Resistor Circuits
  2. Parallel Resistor Circuits
  3. Series-Parallel Resistor Circuits
  4. Complex Resistor Circuits

This course will teach you to master the first category above.

These are the topics covered in this course:

  • Master and solve series resistor circuits using Ohm's Law.
  • Learn to correctly apply Ohm's Law to series resistive circuits.
  • Recognize the “Two Out of Three" rule that will allow you to apply the correct formula to the solution of a circuit.
  • Understand the correct use of the Ohm's Law Triangle.
  • Understand the correct use of the Ohm's Law Wheel.

In other words, you will understand exactly how to solve series circuit resistor problems!

Thiscourse is important if you wish to understand electronics. The analysis of basic series circuits is a fundamental tool that you must master to properly troubleshoot, analyze and maintain electronic equipment. Ohm's Law states the basic relationships between voltage, current and resistance in an electronic circuit. This information is mandatory for any hobbyist or professional who needs to understand how electronic circuits work. This course is a quality product taught by a college instructor who has been teaching electronics for over twenty years. It is the equivalent of a full week of college level training at a community college or technical university.

The primary teaching method is instructor led lectures using PowerPoint slide presentations. Drawings, images and schematics are used to clearly illustrate each electronic principle. There are ten separate lectures that take you through the concepts of Ohm's Law and series circuits in a clear, simple manner. A number of quizzes are included test your retention of the lecture material.

At the end of this course, you will have a solid grasp of the principles of Ohm's Law and the application of this law to the solution of electronic circuit problems.

What are the requirements?

  • It would be helpful if the student understood Ohm's Law, however, in this course, Ohm's Law is provided on the screen whenever needed for computations.

What am I going to get from this course?

  • Determine the value of all electronic characteristics (voltage, current, resistance, power) of any series resistive circuit.
  • State the four basic rules governing series resistor circuits.

Who is the target audience?

  • This course is for students who desire to know how electronic circuits work.
  • This is part of a full semester of electronics training titled "DC Electronics", where students learn the characteristics of Direct Current electronic circuits. Major topics include series circuits, parallel circuits and series-parallel circuits.

What you get with this course?

Not for you? No problem.
30 day money back guarantee.

Forever yours.
Lifetime access.

Learn on the go.
Desktop, iOS and Android.

Get rewarded.
Certificate of completion.


Section 1: Introduction to Electronics: Resistors in Series

This course Introduction video walks through the topics covered in this week 5 of a full semester course about "DC Electronics", and develops the training for the rules of series resistive circuits as used in electronics.

Topics Include:

  • The Four Resistor Configurations
  • Ground and Grounding
  • Series Resistances are Additive
  • Kirchhoff's Voltage Law and How It Applies to Series Resistive Circuits
  • Current in a Series Circuit
  • What is Voltage Drop?
  • Conclusion with Practice Exercises in Series Circuits

Given some number of resistors, there are only four ways that resistors can be connected together:

  1. In Series
  2. In Parallel
  3. In Series-Parallel
  4. In a Complex Resistive Circuit

This lecture describes the first three configurations, and promises to cover the fourth after the student has mastered the first three.

3 questions

Questions about the different ways that a resistive circuit can be configured.


Electrical and electronic circuits require ground connections for several reasons. This lecture describes the concept of grounding, then shows the main ground schematic symbols and explains how they are used.

Section 2: Basic Laws of Series Resistors

Series resistive circuits have four main rules or characteristics that govern their use in electronics. This and the next lecture explain and discuss the rule that in a series circuit, the total resistance is equal to the sum of the resistances in the circuit.

Series resistive circuits have four main rules or characteristics that govern their use in electronics. This and the previous lecture explain and discuss the rule that in a series circuit, the total resistance is equal to the sum of the resistances in the circuit.
Series Resistors
2 questions

Kirchhoff's Law states that the sum of the voltage drops in a series circuit must equal the source voltage applied to the circuit. This lecture explains and expands on that rule.

3 questions

Questions about Kirchhoff's Voltage Law


In any series resistive circuit, the current is the same throughout that circuit. This concept is explained and examples given in this lecture.

Section 3: Voltage Drop and Series Circuit Practice Problems

In electronics, we say that a component "drops" a specific voltage in a circuit. This, and the next lecture explain that concept, and gives several examples of how voltage drop is computed.

In electronics, we say that a component "drops" a specific voltage in a circuit. This, and the previous lecture explain that concept, and give several examples of how voltage drop is computed.

This lecture presents the student with several resistive series circuit problems, and walks the student through to the correct solution of all characteristics of the circuits.

4 questions

Solve a series circuit using all of the tools described in this lesson.

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Instructor Biography

Richard Vannoy, College programming, database and electronics instructor

College teacher for computer programming (C, C++, Visual Basic, Python, Java), database (SQL, Access), microcontrollers, Programmable Logic Controllers, basic and intermediate electronics for seventeen years. Teaching awards include Instructor of the Quarter (Four Awards), Regional Instructor of the Quarter, Employee of the Year, Employee of the Month (Two Awards)

Ten years employed as computer programmer.

Degrees: Computer Programming, Electronics, Information Technology.

Interests: Arduino, 8051 Assembly Programming, robotics, electronics

Founder and past president of San Diego Robotics Society. Member and guest lecturer Riverside and Long Beach Robotics Societies.

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