Boolean Theorems (Single Variable)

By Patrick Hoppe

Students analyze the eight single variable Boolean theorems and their expressions.

Op Amps 2: The Non-Inverting Amplifier

By Todd Van De Hey

The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.

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.

Cascading Timers

Learners study the method of cascading two or more PLC timers to extend their time capacity.

Ladder Logic Schematic Symbol Flashcards

By John Rosz, Terry Fleischman

This interactive object is designed to help learners memorize the schematic symbols used in ladder logic diagrams. Learners quiz themselves using electronic flashcards.

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.

Lathe Project: Turning Using a Digital Readout

By Thaddeus Hetzer

Users read work instructions and view a drawing and calculations for turning on a lathe using a digital readout.

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.

The Elementary AC Generator

Learners view animations showing the operation of the internal parts of an AC generator. A short quiz completes the activity.

The Zener Diode: Practice Problems

Students complete 10 practice problems. These deal with the determination of series current, zener current, and load current, and if the zener diode is operating in the breakdown region.

Demultiplexers

In this animated object, learners examine the operation of a demultiplexer along with the data output and select lines. A brief quiz completes the activity.

The Current Divider Rule (CDR) with Complex Numbers

Students view a demonstration of the Current Divider Rule with the use of complex numbers. Examples are given.

Opens Affecting Current in a Series Circuit

In this learning activity you'll review how an open in a series circuit affects current.

Waveforms of a Triac Circuit

Learners observe the waveforms in a circuit in which a triac controls the brightness of a lamp’s light. A brief quiz completes the activity.

Methods of Producing Electricity

In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.

Calculating Blank Size for Rolled Sheet Metal

By Dave Hoffman

In this interactive object, students read how to calculate the blank size for cylinders in a three-roll pinch roller. A calculator is required for the brief quiz that completes the activity.

Three-Phase Delta Transformer Calculations

By James Bourassa

Using a memory shortcut for calculations, the learner determines line and phase values of current in a three-phase AC configuration. Practice problems complete the activity.

Active Region Operation of a Transistor

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

The Welder's Tool Bag

By lloyd

In this learning object, you’ll explore what tools should be a part of every welding tool bag.

Abbreviations Representing Electrical Quantities

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

Series Capacitance

Students view the steps for determining the total capacitance for a series circuit. They then work practice problems.

Diode Approximations

This learning object introduces the three approximations of a diode.

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.

Hydraulic Mechanical Force

This animated lesson shows how to calculate the amount of force generated by hydraulic cylinders.

Determining Hydraulic Cylinder Size

Students read how to calculate the size of a hydraulic cylinder that is required for a particular application. Mathematical formulas are provided.