Oscilloscope AC Voltage Measurements

By Terry Bartelt

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.

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.

The PLC Examine-Off Instruction

In this animated object, learners examine the operation and programming requirements of a PLC Examine-Off instruction. A brief quiz completes the activity.

Op Amp Fundamentals: The Inverting Amplifier

By Patrick Hoppe

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.

Half-Wave Rectifier

This primer introduces the student to the half-wave rectifier. Both the 1st and 2nd approximations are examined.

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.

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.

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.

Lathe Project: O. D. Threading

By Kelly Curran

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

Lathe Project: Alternate Thread Forms - Left Hand Threads

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.

Print Reading: Holder

Learners test their ability to visualize a holder in this interactive exercise that features animated pictorial views.

DC/AC I: Unit 5 Sample Exam

Learners answer 14 questions about series-parallel DC circuits.

Parallel DC Circuit Analysis

The approach to dc circuit analysis is presented to the learner. The approach is demonstrated for the student.

Lathe Project: Turning Between Centers

By Thaddeus Hetzer

Learners read work instructions and view a drawing for turning between centers on a lathe.

Power Calculations in a Series/Parallel Circuit

In this learning activity you'll explore various ways to calculate the power consumed in a series/parallel circuit.

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.

Surface Finish

By Barbara Anderegg

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

Capacitors Series - Parallel: Practice Problems

Students complete 10 practice problems.

The TI-83 Plus Calculator: The Square Root Function

Learners follow step-by-step instructions for calculating the square root of a number using the TI-83 Plus scientific calculator. Steps for determining impedance are also shown.

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

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

Kirchhoff's Voltage Law

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

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.

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.