Designing a Cylinder Dwell Circuit

By Terry Bartelt

This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.

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.

Capacitors Series - Parallel: Practice Problems

By Patrick Hoppe

Students complete 10 practice problems.

The Generation of Alternating Current

This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.

Ziegler-Nichols Continuous Cycling Tuning Calculations

Learners examine the formulas that are used to determine the proper PID values to be entered into a controller using the Ziegler-Nichols Continuous Cycling Tuning Method.

Resistor Color Code Description

In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.

Inductors

This learning activity describes the abilities of an inductor coil to oppose alternating current and to pass direct current.

The Force of a Hydraulic Cylinder

In this interactive object, learners read how to determine the force created by a hydraulic cylinder during extension and retraction. A brief quiz completes the activity.

The PLC Examine-On Instruction

Learners examine an animated view of the operation and programming requirements of a PLC Examine-On instruction. A brief quiz completes the activity.

SLC-500 Data File Elements

Learners examine the elements of a data file memory of an Allen-Bradley SLC-500 programmable controller. A quiz completes the activity.

Total Resistance in a Parallel Circuit

The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.

Dynamic Braking Circuits

In this animated activity, learners examine the operation of a dynamic braking circuit used to quickly stop a motor.

Voltage Drops in a Series Circuit

Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.

Parallel RL Circuit Practice Problems

By James Bourassa, John Rosz

In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.

Op Amp Fundamentals: The Transconductance Amplifier

Students read an introduction to the transconductance amplifier. They also view formulas for voltage-to-current conversion, closed-loop input, and output impedance. An example of how R1 controls the conversion factor is given.

Ohm's Law Practice Problems #1

Learners review Ohm's Law and then work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third.

Parallel Circuit Analysis Practice Problems: Circuit #5

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 by each resistor.

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 Binary-Coded Decimal

By John Casey, Terry Bartelt

Learners are introduced to the binary-coded decimal, a common way of encoding decimal digits in computing and electronic systems. A brief quiz completes the activity.

The Electrostatic Charge of a Capacitor

In this animated activity, learners examine the conversion of electrical energy into an electrostatic charge within the dielectric material of a capacitor.

Volts per Hertz Ratio in AC Drives

Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.

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.

Introduction to Class 2 Levers

In this interactive object, students view an animated depiction of Class 2 levers. A matching quiz completes the activity.

P&ID General Instrument Symbols

Learners study the types of symbols used on a P&ID diagram to indicate instruments. A quiz completes the activity.

Series RC Circuit Vector and Circuit Analyzer

In this teaching and learning aid, the user can alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.