Electronics S1W4: Metric Prefixes and Resistor Color Codes

Correctly use metric prefixes, identify resistor values, measure voltage, current and resistance and circuit power.
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  • Lectures 9
  • Length 2 hours
  • Skill Level Beginner Level
  • Languages English
  • Includes Lifetime access
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    Available on iOS and Android
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About This Course

Published 4/2015 English

Course Description

This course uses PowerPoint presentations to cover the following topics:

  1. Metric prefixes (pico, micro, milli, kilo, mega, tera) and their use in electronics
  2. Correct identification of resistor values using the a Resistor Color Code Chart
  3. Practice using the Color Code Chart
  4. Identify different physical configurations of resistors
  5. Correctly identify a resistor's power rating
  6. Determine that a resistor with a specific power rating can safely be used in an electronic circuit
  7. Use a multimeter to correctly and accurately measure voltage, current and resistance in electronic circuit.

What are the requirements?

  • No prior knowledge, materials or software is required for this course.

What am I going to get from this course?

  • List and identify metric prefixes, such as micro, milli, kilo, mega, and explain how they are used in electronics.
  • Use a resistor Color Code Chart to correctly determine the correct resistance of a resistor.
  • Explain the difference between fixed resistors and potentiometers.
  • Correctly calculate the proper wattage of resistor that can be safely used in a circuit.
  • Explain how to take voltage, resistance and current readings using a multimeter.

Who is the target audience?

  • This course is for professionals, students and hobbyists who desire to know how electronic components and circuits work.

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 Metric Units

After this lesson, you will be able to identify the metric prefixes and understand how they are used. For example, you will know the difference between milliamps and microamps, or between megavolts and kilovolts.

Metric Prefixes Quiz
5 questions
Section 2: Resistor Color Codes

Using the color code chart provided, you will be able to look at any resistor that has the color band codes, and determine the exact value of that resistor.


By using the Color Code Chart provided in lecture 2, you will be able to practice using the code to correctly identify the value of resistors.

Resistor Color Code Quiz
4 questions
Section 3: Types of Resistors and Resistor Power Ratings

Resistors come in many shapes, sizes and power ratings. This lesson will introduce you to the variations of available resistors.


When we say that a resistor has a power rating of 1/8 Watt or 1 Watt, what does that mean? This lesson will explain that for you.

Resistors and Resistor Power Ratings Quiz
6 questions
Section 4: Electronic Measurements

This lesson will familiarize you with many of the features shown on the front panel of a multimeter.


Multimeter front panel identification continues, with additional information on special or added features present on some multimeters.


This lesson continues with front panel identification of multimeter features.


Part 4 tells you specifically how to measure resistance, voltage and current using a multimeter.

Electronic Measurements Quiz
6 questions

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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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