Voltage Divider Rule (VDR)

By Terry Fleischman, Patrick Hoppe

Students review the Voltage Divider Rule and work practice problems.

AND Gates

By Terry Bartelt

In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.

Transistor DC Analysis Practice Problems: Circuit #1

By Patrick Hoppe

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

Inductors

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

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.

Active Region Operation of a Transistor

Learners view the operation of an NPN transistor in the active region.

Total Resistance in a Parallel Circuit

The learner will apply the three formulas used to find the total resistance of three types of parallel resistor circuit configurations.

AC Voltage Conversions

In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.

Voltages Across Series and Parallel Capacitive Circuits

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

Logic Symbols

The schematic symbols of logic gates used in digital circuits are shown.

Difference Op Amp

Learners examine the fundamental operation of a difference operational amplifier. A brief quiz completes the activity.

Voltage and Current Amplitudes in a Series RLC Circuit

Learners examine how voltages and currents vary in a series RLC circuit as the applied frequency changes.

Waveforms of an SCR Circuit

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

Ohm's Law: Current

By Tim Tewalt, Patrick Hoppe

Learners study animated rheostat settings that show how current flow is inversely proportional to resistance. Ten review questions complete the learning object.

Voltage Measurements of a Half-Wave Rectifier

In this animated lesson, students view how an oscilloscope and a DC voltmeter measure the voltage of a half-wave rectifier.

The Generation of Alternating Current

This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.

Kirchhoff's Current Law - Parallel Circuits

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

The 4-Input Truth Table

In this learning activity you'll practice using the 4-input truth table.

The Semiconductor Diode

In this interactive object, learners examine the PN sections of a diode and the diode's forward- and reverse-biased operations. A brief quiz completes the activity.

Waveforms of a Triac Circuit

Learners observe the waveforms in a circuit in which a triac controls the brightness of a lampâ€™s light. A brief quiz completes the activity.

Total Resistance of a Series Circuit

In this learning activity you'll review the process of solving for the total resistance in a series DC circuit.

Powers of Ten: The Proper Use of Symbols

Students read about the six common terms used to represent the powers of ten in the field of electronics and complete two matching exercises.

The Zener Diode

In this animated object, learners examine the operation of a zener diode in the forward and reverse bias conditions. A quiz completes the activity.

Inductance

This learning activity describes the physical properties that affect the inductance, in henries, of an inductor.

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.