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Protective Relay Circuits

Worksheets - Security

Protective relays are special power-sensing devices whose job it is to…

Op-Amp Voltage and Gain Calculator

Tools

A calculator for computing the gain and output voltage of an operational amplifier

Mutual Inductance and Basic Operation

Textbook

Behaviors of Inductors wrapped around a Conductive Core Suppose we…

Arc Flash and Arc Blast

Worksheets - Security

Electromechanical relays used to start and stop high-power electric…

Wire-by-Number project kit introduction

Worksheets - Security

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

Applications of Resonance

Textbook

So far, the phenomenon of resonance appears to be a useless curiosity,…

Complex Number Arithmetic

Textbook

Since complex numbers are legitimate mathematical entities, just like…

Polar Form and Rectangular Form Notation for Complex Numbers

Textbook

In order to work with complex numbers without drawing vectors, we…

Wire Loop Inductance Calculator

Tools

This calculator helps you compute the inductance of a wire loop.

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Basic Troubleshooting Strategies

Worksheets - Security

A chandelier has five light bulbs in it, and one of them is not…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Setting Up a Home Lab

Textbook

In order to build the circuits described in this volume, you will need…

More on AC “polarity”

Textbook

Complex numbers are useful for AC circuit analysis because they…

Design Project: AC-DC Power Supply

Worksheets - Security

Safety is very important when designing and/or building a device…

Network Protocols

Textbook

Aside from the issues of the physical network (signal types and…

Thevenin’s, Norton’s, and Maximum Power Transfer Theorems

Worksheets - Security

Suppose a 12 volt lead-acid battery has an internal resistance of 20…

High-impedance Voltmeter

Textbook

PARTS AND MATERIALS Operational amplifier, model TL082 recommended…

True, Reactive, and Apparent Power

Textbook

Reactive Power We know that reactive loads such as inductors and…

Likely Failures in Unproven Systems

Textbook

“All men are liable to error;” —John Locke Whereas…