Transistor DC Analysis Practice Problems: Circuit #4
By Patrick Hoppe
Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.
Transistor AC Analysis Practice Problem: Circuit #2
The learner solves for Zin(base), Zin(stage), Zout, and Av. A "help" screen is available.
Graphical BJT/JFET Transistor Biasing
By Roger Brown
Learners use two calculations to prepare a graphical solution to the biasing of bipolar junction transistors and junction field effect transistors. This method eliminates the problem of having to re-calculate the operational Q point when dealing with hard saturation.
DC/AC I: Unit 3 Sample Exam
In this interactive object, students answer 10 questions covering Ohm's Law and Power Law.
Transistor AC Analysis Practice Problem: Circuit #5
The Counter-Reset Function
By Terry Bartelt
Learners examine the counter-reset function of a programmable controller and how it is used.
Sine Wave Fundamentals: Practice Problem #6
In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.
Sine Wave Fundamentals: Practice Problem #8
Strength of Materials: The Centroid of a Rectangle
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a rectangle.
Statics: Law of Transmissibility
Learners examine how a force may be considered to act at any point along its line of action as long as the magnitude and direction of the force remain unchanged. Numerical verification is provided.
Basic Types of Lines Used in Engineering Drawings
By Kelly Curran, Glenn Sokolowski
In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. A quiz completes the activity.
Series-Parallel Circuit Analysis Practice Problems: Circuit 8
Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.
DC/AC I: Unit 4 Sample Exam
In this interactive object, learners answer nine questions about series and parallel circuits. Immediate feedback is provided.
The Feed-Forward Control System
In this animated object, learners examine the operation of a feed-forward control system and its advantages over a closed-loop system. A brief quiz completes the activity.
Sine Wave Fundamentals: Practice Problem #5
The Mathematical Expression of an AC Sine Wave As a Function of Time: Practice Problems
Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.
Gear Nomenclature (Screencast)
By James Bourassa
In this interactive object, learners view various components of gears and read descriptions of them. Learners then identify the location of each of these components in a drag-and-drop exercise.
GD&T: Geometric Characteristic Symbols
By Glenn Sokolowski
In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.
Excel: Entering a Formula
In this animated learning object, users view the process of entering a formula in an Excel spreadsheet. Several different methods and associated examples are given.
Electrical Units, Abbreviations, and Symbols
In this learning activity you'll read introduction to electrical quantities, units, and symbols and test their knowledge in a matching exercise.
Sine Wave Fundamentals
Learners examine the characteristics of a sine wave and the various ways to describe it including Vp, Vp-p, Vrms, Vavg, and frequency.
Proportional Control Amplifier
Learners examine the operation of a proportional control amplifier and the two ways that it is programmed using proportional gain or proportional band. A brief quiz completes the activity.
Up/Down-Counter Application
In this animated object, learners examine how PLC up/down-counters are used to control an automated parking lot gate.