Voltage Divider Rule Practice Problems

By Patrick Hoppe

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

The DC Motor

By Terry Bartelt

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.

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.

Series-Parallel Practice Problems Circuit 4

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

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.

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.

Transfer Functions: The RC High Pass Filter

Learners read how the transfer function for a RC 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.

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.

Voltage Waveforms in an Edison Three-Wire System

Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.

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.

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.

DC/AC I: Unit 5 Sample Exam

Learners answer 14 questions about series-parallel DC circuits.

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.

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.

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.

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.

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.

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.

Frequency Dividers

In this learning activity you'll explore the operation of frequency division using several different types of counters.

Proper Meter Placement

In this learning activity you'll read the steps for proper meter placement for the measurement of resistance, voltage, and current.

Current in a Series Circuit

In this learning activity you'll determine what happens to current flow in a series circuit when the resistance is changed.

Hexadecimal Numbering System

In this learning activity you'll review the hexadecimal numbering system.

Wiring Integrated Circuits

Instructions on how to wire an integrated circuit are given.

Logic Probes

In this animated activity, learners examine the fundamental operation of a logic probe that is used to detect logic signals in a digital circuit.