Total Impedance of a Parallel Circuit Using Complex Numbers

By Patrick Hoppe

Students read how to determine the total impedance of a parallel circuit using complex numbers. The "J" term is used in the calculations.

PLC Shift Registers

By Terry Bartelt, Tom Yapp

In this animated activity, learners study how a PLC performs a shift operation. The learning object covers data movement, data entry, PLC wiring, PLC shift register introductions, and programming for a paint can operation.

Pressure-Reducing Valve Application

By Terry Bartelt, Stephen Schneider

In this animated activity, a drill-and-clamp machine is used to show an application of a pressure-reducing valve. Recommendations on how to properly make pressure adjustments are also provided.

Schematic Diagram Symbols

By Terry Bartelt

In this learning activity you'll review various types of common components used in electronics and view their schematic diagram symbols.

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.

The Time Proportioning Operational Amplifier (Screencast)

In this animated object, learners see how a time proportioning operational amplifier varies an average DC voltage. A brief quiz completes the activity.

What Is Electricity?

The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.

Orthographic Projection #1

By Glenn Sokolowski

In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.

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.

Shorts Affecting Current in a Series Circuit

In this learning activity you'll review how a short affects current flow and voltage in a series circuit.

The Transistor Symbol

In this animated and interactive object, learners use a memory device to identify NPN and PNP transistors. Learners also examine how much the transistors turn on when the voltage applied to the base is varied.

Abbreviations Representing Electrical Quantities

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

Hydraulic System Pressure

In this animated activity, learners observe how pressure values throughout a hydraulic system are developed based on pump pressure and the size of the load.

Hydraulic Systems

In this animated activity, learners examine the three main segments of a hydraulic system: power supply, control, and output. A brief quiz completes the learning object.

The Magnetron Ignition System

Learners read an explanation of how the Magnetron Ignition System uses a solid state switching component, a step-up transformer, and magnetism to provide a high voltage spark in a one-cylinder combustion engine.

Series Circuit Analysis Practice Problems Part 1

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Converting Rotational Velocity to Linear Velocity

By James Bourassa, John Rosz

In this animated object, students view an example of how to convert rotational velocity to linear velocity. They then work practice problems.

Comparing Hydraulics and Pneumatics

Learners examine the differences and similarities between hydraulic and pneumatic systems.

GD&T: Geometric Characteristic Symbols

In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.

Gear Ratio Concepts (Screencast)

By James Bourassa

In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.

Calculating Horsepower, RPM, and Torque

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

Calculating DC Values of a Transistor Amplifier

In this animated activity, learners view the seven steps that are used to calculate voltage and current values throughout a common-emitter transistor amplifier.

Signed Binary Numbers: 2's Complement

By John Casey, Terry Bartelt

Learners use this interactive and animated object to examine the use of binary numbers in a programmable logic controller. A brief quiz completes the activity.

Pressure Measurements in Inches of Water Column

Learners read how inches of water column is used as a unit of pressure measurement. Practical applications and a conversion formula to psi are included.

Sine Wave Fundamentals: Practice Problem #1

In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave displayed on an oscilloscope screen.