Cascading Counters

By Terry Bartelt

Learners observe how to cascade PLC counters to extend the maximum count of one counter.

Fundamentals of a DC Motor

Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.

Calculating Horsepower, RPM, and Torque

By James Bourassa, John Rosz

In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

Brain Exercise: Visualization #1

By Glenn Sokolowski

In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object. Front, side, and top orthographic views are shown.

The Three-Phase AC Generator

By Terry Fleischman

In this 3D animated object, learners examine the way in which a three-phase generator produces three sine waves with three armature coils. A quiz completes the activity.

Armature Action of AC Motors

In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.

Selecting a Proper Single Phase Transformer

By Gary Lindell, Terry Bartelt

Students follow the steps that are required to select a transformer with the proper ratings. Voltage, frequency, current, and KVA are considered.

Transformer Practice Problems

By Patrick Hoppe

Students solve practice problems on voltage, current, and impedance matching. Examples precede the problems.

Statics - Trig: The Pythagorean Theorem Using a TI-36XCalculator

By Steve Whitmoyer

In this animated and interactive object, the learner uses a TI-36X calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

Armature Reaction

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

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.

Brain Exercise: Visualization #3

Learners develop 3D visualization skills by examining front, side, and top orthographic views of objects. Using this information, students select the corresponding isometric view of each object.

Oscilloscope Frequency Measurements

Learners read a description of how an oscilloscope is used to measure the frequency of a sine wave.

Opens Affecting Current in a Series Circuit

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

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.

Abbreviations Representing Electrical Quantities

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

Single-Phase Motors: Introduction to Phase-Splitting

By Terry Bartelt, Terry Fleischman

Learners will understand how the interaction of the armature magnetic field and the rotating stator field cause the rotor of a single-phase AC motor to turn.

Hydraulic Schematic Symbol Flashcards

By John Rosz

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

Voltage Sources in Series

In this learning activity you'll explore the effect of connecting voltage sources in series to increase voltage applied to a load.

Voltage Divider Rule (VDR)

By Terry Fleischman, Patrick Hoppe

Students review the Voltage Divider Rule and work practice problems.

Transistor DC Analysis Practice Problems: Circuit #1

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

Integral Contol Mode Application

In this animated object, learners examine the operation of a robot using the integral control mode to overcome a steady state.

Motor Starter Protection

Learners examine the ways in which a motor starter circuit is protected by a main circuit breaker and overload heaters when there is excessive current.

The TI-83 Plus Calculator: Complex Conjugate Conversion

Learners view the steps to find the complex conjugate of a number using the TI-83 Plus calculator. They are encouraged to work the examples given.