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Unit 2. More of the Basics


In this unit we'll cover an important mathematical topic: scientific notation and engineering notation. (Actually, we already started this topic in Unit 1 when we mentioned the prefixes, such as k and M, used to indicate large or small numbers.) With that topic under our belts, we'll be able to make sense of the color codes that appear on resistors and the numeric codes that appear on capacitors and inductors. We'll also talk about the solderless breadboard, and we'll see how to use the breadboard to connect components together in two different ways, called series connections and parallel connections.

Unit 1 Review

Powers of Ten
Two Standard Conventions
Scientific Notation
Engineering Notation
Metric Prefixes
Metric-Prefix Matching Game

Converting between Kilohms and Ohms
Converting between Megohms and Ohms
Metric Prefix Conversions
Converting from a Larger Prefix to a Smaller Prefix
Converting from a Smaller Prefix to a Larger Prefix

Calculator's Exponent Key
Calculator Modes
Calculator Manuals Online

Resistor Color Code
Color-Code Matching Game
Reading a Resistor's Value
Resistor Identification Game
More Practice from our Friends in Wisconsin

Reading a Capacitor's Value
Capacitor Identification Game
Capacitor Tolerance Codes

Reading an Inductor's Value
Inductor Tolerance Codes

Solderless Breadboard

Connecting Two Components in Series
Connecting More than Two Components in Series
Total Resistance (or Total Capacitance or Total Inductance)

Connecting Two Components in Parallel
Connecting More than Two Components in Parallel

Unit 2 Review

Congratulations! You've completed the e-Lesson for this unit.