Voltage Divider Rule Practice Problems

By Patrick Hoppe

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

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.

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.

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.

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.

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.

Excel: Rectangular to Polar Conversion for the Phase Angle in Radians

The conversion from rectangular to polar mode phase angle in radians is demonstrated in Excel.

Electrical Generator Basics

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.

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.

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.

Series-Parallel Practice Problems Circuit 4

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

An Introduction to Motor Control Circuits

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

DC/AC I: Unit 5 Sample Exam

Learners answer 14 questions about series-parallel DC circuits.

Wattmeters

Learners examine the function of the analog wattmeter to measure true power, how it is connected in a circuit, and how the internal components develop a measurement. A brief quiz completes the activity.

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.

Kirchhoff's Voltage Law with Complex Numbers

Learners view a demonstration of Kirchhoff's Voltage Law using complex numbers for an ac circuit.

Mathematical Expression of an AC Sine Wave

Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.

Power Factor

Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes 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.

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.

Statics: Force Systems

Learners read an introduction to the four basic types of force systems for a statically determinate 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.

Up/Down-Counter Application

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

BCD-to-Seven Segment Decoder

Learners will understand how binary-coded decimal information is decoded and used to drive a seven-segment display.