Inductors (Description and Examples)

By Patrick Hoppe

Learners read a description of inductors and view examples of inductors in series and in parallel.

Total Power Calculations in a Series Circuit

By Terry Bartelt

In this learning activity you'll review the various ways to calculate the total power consumed in a series circuit.

Analog Voltmeter Operation

Students follow the procedure to measure voltage with an analog voltmeter. They examine the use of the Function Switch and the Range Switch. A brief quiz completes the activity.

Op Amp Fundamentals: The Operational Amplifier

Students read about the characteristics of the ideal operational amplifier and compare them with the industry standard LM741C.

The Magnetic Circuit

Learners compare electromagnetic quantities with the voltage, current, and resistance quantities of an electrical circuit. A brief quiz completes the object.

Parallel Circuit Analysis Practice Problems: Circuit #8

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 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.

Conductors, Insulators and Resistors

In this animated activity, learners examine why various materials are conductors, insulators, or resistors of current. A short quiz completes the learning object.

Reversing the Rotation of DC Motors

By Terry Bartelt, Terry Fleischman

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

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.

Parallel Circuit Analysis Practice Problems: Circuit #10

ElectroMagnetic Radio Waves

In this animated object, learners examine how magnetic waves are transmitted as radio signals.

The Transistor Symbol

In this animated and interactive object, learners use a memory device to identify NPN and PNP transistors. Learners also examine how much the transistors turn on when the voltage applied to the base is varied.

Identifying Engineering Notation

By Ron Wallberg

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

Electrical Switches & Pushbuttons

In this learning activity you'll review the operation and schematic symbols of various types of switches and push buttons used for electronic circuits.

How Current Requires Voltage

This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.

The Function Generator: Voltage Control

Learners read a description of the knob controls, pushbuttons and output terminals on the Wavetek Model 25 signal generator.

Operation of Full-Wave Bridge Rectifier

By Matthew Treu

In this learning activity you'll explore the operation of a full-wave bridge rectifier circuit.

Transistor Fundamentals: AC Models

Students read about the four steps to creating an ac model and view examples.

The Differentiator Op Amp

In this animated object, learners examine the circuit configuration and operation of a differentiator operational amplifier. A brief quiz completes the activity.

Converting Values in Engineering Notation

The learner will convert various values to engineering notation.

Circuit Protection

In this learning activity you'll explore how a fuse de-energizes a parallel circuit when too many lamps are connected to a power outlet.

The L/R Time Constant

Learners read an explanation of the L/R time constant and examine the formula for calculating the instantaneous current value. The current is graphed as it climbs to maximum or drops to zero.

Kirchhoff's Current Law - Parallel Circuits

In this learning activity you'll explore Kirchhoff's Current Law and view examples of its application.

Opens and Shorts in a Parallel Circuit

Learners examine the changes in current and voltage values in a parallel circuit when open and short conditions develop. Ohm's Law calculations are shown, and a brief quiz completes the activity.