All About Circuits

Latest Circular Connectors Education

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Electrical Connections

Electrical Connections

What, exactly, is necessary to establish electrical continuity between…


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Networks and Busses

Networks and Busses

The wires between the tank and the monitoring location is  called…


Textbook

Intro Lab - Circuit With a Switch

Intro Lab - Circuit With a Switch

In this hands-on electronics experiment, you will control a light with a switch and learn the basics of connecting toggle (on/off) switches into circuits.


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Parallel Wire Inductance Calculator

Parallel Wire Inductance Calculator

This tool is designed to calculate the inductance of two parallel wires


Tools

Electromagnetic Induction

Electromagnetic Induction

While Oersted’s surprising discovery of electromagnetism paved…


Textbook

DIY EE Lab - Setting Up a Home Electronics Lab

DIY EE Lab - Setting Up a Home Electronics Lab

To build the DIY electronics projects described in this textbook, you will need a small work area, a few tools, and some basic electronics supplies. This page describes the setup of a low-cost home electronics laboratory.


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Wire Self Inductance Calculator

Wire Self Inductance Calculator

This calculator will help compute the inductance of a length of wire.


Tools

Specific Resistance

Specific Resistance

Designing Wire Resistance Conductor ampacity rating is a crude…


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Connectors

Connectors

An electrical connector, is an electro-mechanical device used to join…


Textbook

Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Building Resistor Circuits Using Breadboards, Perfboards, and Terminal Strips

Over the course of learning about electricity, you will want to…


Textbook

Three-phase Y and Delta Configurations

Three-phase Y and Delta Configurations

Three-phase Wye(Y) Connection Initially, we explored the idea of…


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Wire Types and Sizes

Wire Types and Sizes

Most electrical wire is covered in a rubber or plastic coating called…


Worksheets - Circular Connectors

Conductor Size

Conductor Size

It should be common-sense knowledge that liquids flow through…


Textbook

Electromechanical Relay Logic

Electromechanical Relay Logic

In ladder logic symbolism, an electromechanical relay coil is shown as…


Worksheets - Circular Connectors

Solving Simultaneous Equations: The Substitution Method and the Addition Method

Solving Simultaneous Equations: The Substitution Method and the Addition Method

What are Simultaneous Equations and Systems of Equations? The terms…


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Circuit Wiring

Circuit Wiring

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


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Electrical Signal Types

Electrical Signal Types

With BogusBus, our signals were very simple and straightforward: each…


Textbook

Switch Types

Switch Types

Though it may seem strange to cover the elementary topic of electrical…


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Analog and Digital Signals

Analog and Digital Signals

Instrumentation is a field of study and work centering on measurement…


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Common Sources of Hazard

Common Sources of Hazard

Of course, there is a danger of electrical shock when directly…


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“Ladder” Diagrams

“Ladder” Diagrams

Ladder diagrams are specialized schematics commonly used to document…


Textbook

Copper Wire Ampacity Table

Copper Wire Ampacity Table

Ampacities of copper wire, in free air at 30o C: INSULATION TYPE…


Textbook

DC Lab - Build Your Own Multimeter

DC Lab - Build Your Own Multimeter

In this hands-on electronics experiment, you will build a simple voltmeter and ammeter while learning some fundamentals about circuit measurements.


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Si Lab - Simple Op Amp

Si Lab - Simple Op Amp

In this hands-on semiconductor electronics experiment, build a custom operational amplifier (op amp) and learn about the application of current mirrors and the use of negative feedback in op amp circuits.


Textbook

What Are Electric Circuits?

What Are Electric Circuits?

You might have been wondering how charges can continuously flow in a…


Textbook

Trigonometry for AC Circuits

Trigonometry for AC Circuits

Identify which trigonometric functions (sine, cosine, or tangent) are…


Worksheets - Circular Connectors

Autotransformers

Autotransformers

How much voltage is there between the following pairs of points in…


Worksheets - Circular Connectors

Polyphase Power Systems

Polyphase Power Systems

Explain the difference between a balanced polyphase system and an…


Worksheets - Circular Connectors

The Shockley Diode

The Shockley Diode

Our exploration of thyristors begins with a device called the…


Textbook

Twisted-Pair Impedance Calculator

Twisted-Pair Impedance Calculator

A tool designed to calculate the characteristic impedance of a twisted-pair cable


Tools

Programmable Logic Controllers (PLC)

Programmable Logic Controllers (PLC)

Before the advent of solid-state logic circuits, logical control…


Textbook

Standing Waves and Resonance

Standing Waves and Resonance

Whenever there is a mismatch of impedance between transmission line…


Textbook

Design Project: Arbitrary Waveform Generator

Design Project: Arbitrary Waveform Generator

What, exactly, is an arbitrary waveform generator, and for what…


Worksheets - Circular Connectors

Soldering

Soldering

Both soldering irons and soldering guns are tools used in the process…


Worksheets - Circular Connectors

Clamper Circuits

Clamper Circuits

The circuits in the figure below are known as clampers or DC…


Textbook

Physical Effects of Electricity

Physical Effects of Electricity

Certain substances are known to physically deform (shorten or…


Worksheets - Circular Connectors

Finite State Machines

Finite State Machines

Up to now, every circuit that was presented was a combinatorial…


Textbook

Non-right Triangle Trigonometry

Non-right Triangle Trigonometry

The Law of Sines (for any triangle) The Law of Cosines (for any…


Textbook

Broadside Coupled Trace Inductance Calculator

Broadside Coupled Trace Inductance Calculator

This calculator helps you compute the inductance of a broadside coupled trace.


Tools

Energy, Work, and Power

Energy, Work, and Power

Define the following terms: energy, work, and power.


Worksheets - Circular Connectors

Optoelectronic Devices

Optoelectronic Devices

In this circuit, the electric motor is supposed to turn on whenever…


Worksheets - Circular Connectors

Waveguides

Waveguides

A waveguide is a special form of transmission line consisting of a…


Textbook