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Series-Parallel Combination AC Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6-volt batteries Three NPN…

Basic Electromagnetism and Electromagnetic Induction

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When lightning strikes, nearby magnetic compass needles may be seen to…

Tubes versus Semiconductors

Textbook

Devoting a whole chapter in a modern electronics text to the design…

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Microphones

Don’t just sit there! Build something!! Learning to mathematically…

Practical Considerations - Transformers

Textbook

Power Capacity As has already been observed, transformers must be well…

Active Filters

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Don’t just sit there! Build something!! Learning to mathematically…

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Sensitive Voltage Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Resonance

Worksheets - Microphones

The Q factor of a series inductive circuit is given by the following…

Wire-by-Number project kit introduction

Worksheets - Microphones

Wire-by-Number project: simple voltage divider Description: Build a…

555 Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 0.1 µF,…

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Oscillator Circuits

Worksheets - Microphones

Don’t just sit there! Build something!! Learning to mathematically…

Design Project: Sensitive Microphone Amplifier

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Identify which direction each potentiometer wiper must move in this…

Performance-Based Assessments for AC Circuit Competencies

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Four-Channel Audio Mixer

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A very common misconception students have about potentiometers is the…

BJT Amplifier Troubleshooting

Worksheets - Microphones

As an instructor of electronics, I am called upon frequently to help…

Power Quality Measurement

Textbook

It used to be with large AC power systems that “power…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

Introduction to DC Circuits

Textbook

“DC” stands for Direct Current, which can refer to either…

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

Differential Amplifier

Textbook

PARTS AND MATERIALS Two 6-volt batteries Two NPN…

Nonlinear Conduction

Textbook

“Advances are made by answering questions. Discoveries are made…

Calculating Electric Power

Textbook

Learn the Power Formula We’ve seen the formula for determining…

Resistor Color Codes

Textbook

Try out our Resistor Color Code Calculator in our Tools section.…

Voltage Divider Calculator

Tools

The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.

The Exclusive-OR Function: The XOR Gate

Textbook

What Is an XOR Gate? One element conspicuously missing from the set of…

Timer Circuits

Worksheets - Microphones

Don’t just sit there! Build something!! Learning to analyze digital…

Phase-locked Loops

Textbook

Metric Prefix Conversions

Textbook

To express a quantity in a different metric prefix from how it was…

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Power in Electric Circuits

Textbook

In addition to voltage and current, there is another important…

Miscellaneous Diode Applications

Worksheets - Microphones

Don’t just sit there! Build something!! Learning to mathematically…

Design Project: Sensitive Audio Detector

Worksheets - Microphones

The choice of step-down transformers to use in a project such as this…

Circuit Wiring

Textbook

So far, we’ve been analyzing single-battery, single-resistor…

Active Loads in Amplifier Circuits

Worksheets - Microphones

We know that the current in a series circuit may be calculated with…

Introduction to Network Theorems

Textbook

Anyone who’s studied geometry should be familiar with the…