Wheatstone Bridge

By Terry Bartelt

Students follow step-by-step directions on how to make mathematical calculations for a Wheatstone bridge.

The Broadband Telco Services Subscriber Loop

By dan.schullo

Walk through the subscriber loop and learn how the signal travels from the central office to the subscriber.

Op Amps 5: Non-Inverting Amplifier Circuit Resistance

By Todd Van De Hey

The learner will calculate basic circuit resistance.

Op Amps 6: Circuit Resistance for the Inverting Amplifier

The learner will calculate input and output circuit resistance for the Inverting Op-Amp configuration.

Rotating Vector Representation of the Sine Function

The learner will be able to represent steady-state AC sinusoidal signals using phase vectors, which will lead to a simplified technique of analyzing AC circuits in a very similar way that we analyze DC circuits.

Armature Reaction

By Terry Bartelt, Terry Fleischman

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

Using an Edge Finder

By Kelly Curran

The learner will use an edge finder to locate the edge of a workpiece.

BCD-to-Seven Segment Decoder

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

Synchronous Motors

In this animated object, learners study how the internal parts of an AC synchronous motor interact with magnetic fields to cause rotation. A short quiz completes the activity.

The Induction Motor Slip

In this animated object, learners examine how the rotation of an induction AC motor's armature slips behind the synchronous rotational speed of the stator's field to create magnetic fields. These fields interact and produce torque. A quiz completes the activity.

Converting Values in Engineering Notation

By Ron Wallberg

The learner will convert various values to engineering notation.

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.

RPM of AC Motors

Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.

Sizing Motor Overloads

By Terry Bartelt, Pat Jensen

Learners use the National Electrical Code to determine the size of a motor overload protection device.

Identifying the Number of Significant Digits

Learners will identify the number of significant digits in practice problems.

Statics - Trig: Law of Cosines Using a TI-86 Calculator

By Steve Whitmoyer

In this interactive and animated object, learners apply the Law of Cosines to determine forces using a TI-86 calculator.

Deriving the Formulas of the Power Wheel

Use Ohm's law, Watt's law, and the power equation to derive formulas for the DC power wheel.

Subtracting Binary Numbers by Adding the 2's Complement

By Kevin Ritzman

In this learning activity you'll solve three binary subtraction problems using the 2's complement method.

Op Amps 4: The Op Amp Buffer

Understand the op-amp buffer configuration and calculate basic circuit impedance.

Op Amps 2: The Non-Inverting Amplifier

The learner will describe the non-inverting op-amp configuration and calculate the circuit gain.

Voltage Regulation of a Zener Diode

The learner will understand how a zener diode maintains a constant voltage as the resistance values of a load change.

Phase-Splitting of Single-Phase Motors

The learner will understand the two methods used to create a phase shift in current between two windings.

Identifying Engineering Notation

The learner will represent very large and very small numbers in engineering notation.

Designing a Ladder Diagram

In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.

Reversing the Rotation of DC Motors

Learners view animations showing how to change the connections to cause a DC motor to reverse its rotation. A short quiz completes the activity.