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 (Screencast)
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.
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.
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).
An Algorithm for Converting a Hexadecimal Number to a Decimal Number
In this animated and interactive object, learners follow two methods for converting a hexadecimal number to a decimal number. They test their knowledge in exercises at the end of the learning object.
An Impedance Matching Application
Learners consider why an impedance matching transformer is needed to connect an antenna to a television.
An Inductor Opposing a Current Change
Learners read how an inductor opposes a current change when it begins to energize and when it begins to de-energize. A short quiz completes the activity.
An Introduction to Motor Control Circuits
By Terry Bartelt, Terry Fleischman
The learner will understand the operation of motor control circuits used to start and stop three-phase motors.