Voltage Divider Rule Practice Problems

By Patrick Hoppe

Learners review the VDR and work six problems. Immediate feedback is given.

Phase-Splitting of Single-Phase Motors

By Terry Bartelt, Terry Fleischman

The learner will understand the two methods used to create a phase shift in current between two windings.

Op Amp Fundamentals: The Non-Inverting Amplifier

Students are introduced to the non-inverting amplifier configuration. The formulas for closed loop gain and bandwidth are shown, and an example is given.

Current and Voltage Parameters of Digital Circuitry

In this interactive learning object, students read about the voltage and current parameters commonly found on a data sheet. A brief quiz completes the activity.

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.

Electrical Generator Basics

By Terry Bartelt

In this animated activity, learners examine how a voltage is induced into a conductor when the conductor cuts across magnetic flux lines. They also view the four factors that determine how much voltage is generated. A brief quiz completes the learning object.

The DC Motor

Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.

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.

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.

Surface Finish

By Barbara Anderegg

Learners review surface finish basics and read how to calculate the roughness average.

An Introduction to Motor Control Circuits

The learner will understand the operation of motor control circuits used to start and stop three-phase motors.

Robotic Welding Instructions

By cebery

The learner will gain an understanding of how a robot uses welding instructions to perform tasks. This learning activity includes video.

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.

Series-Parallel Circuit Analysis Practice Problems: Circuit 10

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

Lathe Project: Alternate Thread Forms - Left Hand Threads

By Kelly Curran

This project gives a drawing with steps to complete the activity.

The Function Generator: Frequency Control

Learners read how to use the knobs and the output terminals of a Wavetek Model 25 function generator to obtain a waveform at a desired frequency.

Total Impedance of a Series Circuit Using Complex Numbers

Students view several examples of how to determine the total impedance of a series circuit. The "j" term is used in all of the calculations.

Exclusive-OR Gates

In this learning activity you'll explore how an Exclusive-OR gate operates by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

Electromagnets

Learners examine how an electromagnet is formed. Animated illustrations show current running through a coil wrapped around an iron core.

Repetitive Cylinder Cycling

In this animated activity, learners examine the operation of a pneumatic cylinder that continuously cycles by extending and retracting.

Successfully Completing Your Weld Test

By lloyd

The learner will...review the process for successfully completing a weld procedure specification for weld testing in the educational setting.

Acronyms & Terminology of the SDS

Learners will understand the technical terms used in the context of the SDS to help them interpret its information.

Grinding Safety for Welders

The learner will...be able to safely use grinding equipment in the welding and metal fabrication shop.

Designing a Ladder Diagram

In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.

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.