Voltage Divider Rule Practice Problems

By Patrick Hoppe

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

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.

Proportional Control Amplifier

By Terry Bartelt

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.

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.

Statics: Resultant Calculations via Graphical Method

By Steve Whitmoyer

In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.

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.

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.

Transistor AC Analysis Practice Problem: Circuit #2

The learner solves for Zin(base), Zin(stage), Zout, and Av. A "help" screen is available.

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.

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.

Kirchhoff's Voltage Law

Students read a definition of Kirchhoff's Voltage Law and view examples of its use.

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.

Series Circuit Analysis Practice Problems: Circuit #3

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

Series Circuit Analysis Practice Problems: Circuit #6

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.

Transistor AC Analysis Practice Problem: Circuit #4

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.

Transfer Functions: The RL High Pass Filter

Learners read how the RL high pass filter is developed. The transfer function is used in Excel to graph the Vout. The circuit is also simulated in Electronic WorkBench and the resulting Bode plot is compared to the graph from Excel.

Transfer Functions: The RL Low Pass Filter

Learners read how the transfer function for a RC low pass filter is developed. The transfer function is used in Excel to graph the Vout. The circuit is also simulated in Electronic WorkBench and the resulting Bode plot is compared to the graph from Excel.

Testing an On/Off Switch

In this learning activity you'll review methods for testing an on/off switch with an ohmmeter and a voltmeter.

Power Law: The Relationship of Voltage, Current, and Watts

Learners examine three formulas than can be used to find dc power. Examples are given.

Transistor Fundamentals: AC Models

Students read about the four steps to creating an ac model and view examples.

Time Proportioning Application

In this animated activity, students view the plastic pellets in a profile extrusion machine being melted as the temperature of the heating elements is elevated by a time proportioning control system.

Up/Down-Counter Application

In this animated object, learners examine how PLC up/down-counters are used to control an automated parking lot gate.

An Introduction to Motor Control Circuits

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

Ladder Logic Schematic Symbol Flashcards

By John Rosz, Terry Fleischman

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