By Terry Bartelt
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.
Troubleshooting a Faulty JK Flip-Flop
In this animated object, learners examine the recommended procedure for troubleshooting a defective JK flip-flop using a logic pulser and probe.
Excel: Spreadsheet Hints
By Patrick Hoppe
Learners read how to create a spreadsheet to determine the voltage drop across a resistor in an AC circuit. The complex functions explained in other learning objects are used in this example.
Sine Wave Fundamentals: Practice Problem #4
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 #10
Parallel Circuit Analysis Practice Problems: Circuit #9
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 by each resistor.
Voltage and Resistors
By Tim Tewalt
This is an animated troubleshooting exercise that takes voltage measurements to determine the fault of three different series circuits. There are six review questions that enable the learner to determine the effectiveness of the troubleshooting presentation.
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.
Transformers - A Mechanical Gear Analogy
By Roger Brown
Learners read an analogy comparing an electrical transformer to mechanical gears.
Oscilloscope AC Voltage Measurements
In this animated learning object, students view the operation of an oscilloscope that is used to measure AC voltages. A brief quiz completes the activity.
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: JFET Amplifiers
Students read an explanation of the common-source and source-follower amplifiers. Gain formulas are developed and an example is given.
Op Amp Fundamentals: The Inverting Amplifier
The inverting amplifier configuration is presented. The closed loop voltage gain and the closed loop bandwidth formulas are explained, along with the concept of negative feedback.
This primer introduces the student to the half-wave rectifier. Both the 1st and 2nd approximations are examined.
Total Impedance of a Series Circuit Using Complex Numbers: Practice Problems
Students solve six problems for series impedance using complex numbers. Immediate feedback is given.
Series Circuit Analysis Practice Problems: Circuit #7
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.
The 7493 IC Binary Counter
In this interactive and animated object, learners examine the construction of a 7493 IC as mod-2 and mod-8 up-counters. They view how this binary counter can be modified to operate at different modulus counts. A quiz completes the activity.
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.
Kirchhoff's Voltage Law
Students read a definition of Kirchhoff's Voltage Law and view examples of its use.
Basic DC Electrical Motor Construction
Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.
DC/AC I: Unit 5 Sample Exam
Learners answer 14 questions about series-parallel DC circuits.
Power Law Practice Problems #1
Learners review the three formulas for power and work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and asked to solve for power. Immediate feedback is provided.
Series Circuit Analysis Practice Problems: Circuit #10
In this interactive object, learners solve for total resistance, total current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.
Series Inductance: Practice Problems
Students work nine practice problems to determine total series inductance. Immediate feedback is given.