RL Time Constant

By Patrick Hoppe

Learners read an explanation of the RL time constant and examine the formula for calculating the instantaneous current value. The current is graphed as it climbs to maximum or drops to zero. Note* In the formulas in this module, the Greek letter epsilon should be the mathematical constant 'e'.

A Drill for Converting Binary Numbers to Decimal Numbers

By John Rosz

Students test their skill at converting binary numbers to decimal numbers. Immediate feedback is provided.

A Sample DC/AC I Exam

Students complete a sample exam for DC/AC I. It provides an overview of the material presented in the course.

A Sample Exam for Digital Electronics

Students answer 10 questions in a sample exam. This exercise covers number systems, number conversion, logic gates, and combinational design. Feedback is provided.

A Timer-Off Application

By Terry Bartelt

Learners examine how a PLC Timer-Off instruction is used in the operation of an automotive paint booth.

A Timer-On Application

In this interactive object, learners view a practical application of a PLC Timer-On function.

AB SLC-500 Memory Structure

Learners examine the functions of the three types of memory used by an Allen-Bradley SLC-500 programmable logic controller: the Executive ROM, Scratch Pad, and Processor File.

Abbreviations Representing Electrical Quantities

In this learning activity you'll identify abbreviations that represent quantities associated with electrical circuits.

Absolute Optical Encoders

The operation and characteristics of an absolute optical encoder used in automation applications are presented.

AC Capacitor: A Water Tank Analogy

By Roger Brown

In this animated lesson, students read an analogy comparing water in a "special" water tank to the current "flow" through a capacitor.

AC Current Flow

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

AC Voltage Conversion Problems

By John Rosz, Terry Bartelt

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

AC Voltage Conversions

In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.

AC Voltage Conversions (Screencast)

Acceleration and Deceleration Adjustments

In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.

Acronyms & Terminology of the SDS

By Jessie Lloyd

Learners will understand the technical terms used in the context of the SDS to help them interpret its information.

Active Region Operation of a Transistor

Learners view the operation of an NPN transistor in the active region.

Advanced Cutting Tools/ Holding Devices and Operations

By Kelly Curran

In this document you'll review photos of different types of drilling tools.

Aeration

In this animated object, learners examine how aeration develops in a hydraulic pump. A brief quiz completes the activity.

Air-to-Open/Air-to-Close Valves

Learners examine how air-to-open valves and air-to-close valves are used in different situations. A brief quiz completes the activity.

Ammco Brake Lathe Controls

By Bill Heesaker

In this animated activity, learners examine the various controls that operate an Ammco brake lathe.

Ammeter Circuit Connections

In this animated activity, students view a step-by-step approach of how to connect an ammeter to a circuit. A brief quiz concludes the lesson.

An Algorithm for Converting a Decimal Number to a Hexadecimal Number

By Kevin Ritzman

In this animated activity, learners examine a systematic method for converting a decimal number (base 10) into a hexadecimal number (base 16).