All About Circuits

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Specific Resistance of Conductors

Specific Resistance of Conductors

Given two lengths of metal wire, which one will have the least…


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Parallel DC Circuits Practice Worksheet With Answers

Parallel DC Circuits Practice Worksheet With Answers

In this circuit, three resistors receive the same amount of voltage…


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JFET Amplifiers

JFET Amplifiers

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


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Digital-to-Analog Conversion

Digital-to-Analog Conversion

If a pulse-width modulated (PWM) signal is sent to a passive…


Worksheets - Linear Regulator

Calculating Electric Power

Calculating Electric Power

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


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Basic Electricity Worksheet

Basic Electricity Worksheet

What is the purpose of the switch shown in this schematic diagram?


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Optoelectronic Devices

Optoelectronic Devices

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


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Synchronous Motors

Synchronous Motors

Single Phase Synchronous Motors Single-phase synchronous motors are…


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Pulse Width Modulation

Pulse Width Modulation

Pulse Width Modulation (PWM) uses digital signals to control power…


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Design Project: Dual-output AC-DC Power Supply

Design Project: Dual-output AC-DC Power Supply

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


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The Common-collector Amplifier

The Common-collector Amplifier

Our next transistor configuration to study is a bit simpler for gain…


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Batteries

Batteries

If I wanted to build a battery-powered electric drill, would it be…


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Special-purpose Diodes

Special-purpose Diodes

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


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Power Conversion Circuits

Power Conversion Circuits

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


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Example Circuits and Netlists

Example Circuits and Netlists

The following circuits are pre-tested netlists for SPICE 2g6, complete…


Textbook

Intro Lab - How to Use a Voltmeter to Measure Voltage

Intro Lab - How to Use a Voltmeter to Measure Voltage

In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure voltage using the voltmeter function.


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SPICE Models

SPICE Models

The SPICE circuit simulation program provides for modeling diodes in…


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Capacitance

Capacitance

Write an equation describing the precise mathematical relationship…


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Time Constant Calculations

Time Constant Calculations

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


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Power Supply Circuits

Power Supply Circuits

There are three major kinds of power supplies: unregulated (also…


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The Junction Field-effect Transistor (JFET) as a Switch

The Junction Field-effect Transistor (JFET) as a Switch

Like its bipolar cousin, the field-effect transistor may be used as an…


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Universal Shift Registers: Parallel-in, Parallel-out

Universal Shift Registers: Parallel-in, Parallel-out

The purpose of the parallel-in/ parallel-out shift register is to take…


Textbook

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

The R/2nR DAC: Binary-Weighted-Input Digital-to-Analog Converter

What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…


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Polyphase Power Systems

Polyphase Power Systems

Explain the difference between a balanced polyphase system and an…


Worksheets - Linear Regulator

Troubleshooting Series and Parallel Circuits

Troubleshooting Series and Parallel Circuits

The jobs of electronics engineers and technicians frequently entail…


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Conventional Transistor Overview and Special Transistors

Conventional Transistor Overview and Special Transistors

A microcontroller is a specialized type of digital computer used to…


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AC Instrumentation Transducers

AC Instrumentation Transducers

Just as devices have been made to measure certain physical quantities…


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Electron Activity in Chemical Reactions

Electron Activity in Chemical Reactions

So far in our discussions on electricity and electric circuits, we…


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Tube Lab - Vacuum Tube Audio Amplifier

Tube Lab - Vacuum Tube Audio Amplifier

In this hands-on electronics experiment, build an audio amplifier using a vacuum tube (triode) and learn about voltage transformers, how to build a high-voltage DC power supply, and how to use a transformer for impedance matching.


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Battery Ratings

Battery Ratings

Because batteries create current flow in a circuit by exchanging…


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Power Density Calculator

Power Density Calculator

A tool designed to calculate the power density of an antenna


Tools

Si Lab - Full-wave Bridge Rectifier

Si Lab - Full-wave Bridge Rectifier

In this hands-on semiconductor electronics experiment, build a full-wave bridge rectifier using silicon diodes and learn some of this circuit's advantages and disadvantages.


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Parallel DC Circuits Practice Worksheet With Answers

Parallel DC Circuits Practice Worksheet With Answers

In this circuit, three resistors receive the same amount of voltage…


Worksheets - Linear Regulator

Active Loads in Amplifier Circuits

Active Loads in Amplifier Circuits

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


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Design Project: AC-DC Power Supply

Design Project: AC-DC Power Supply

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


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Protective Relays

Protective Relays

A special type of relay is one that monitors the current, voltage,…


Textbook

555 Lab - Oscillator With Hysteresis

555 Lab - Oscillator With Hysteresis

In this hands-on electronics experiment, build an oscillator with hysteresis from a Schmitt trigger and learn how to use it to create an RC oscillator and a method to configure a 555 timer as an astable multivibrator.


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More on AC “polarity”

More on AC “polarity”

Complex numbers are useful for AC circuit analysis because they…


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Attenuators

Attenuators

What is Attenuators? Attenuators are passive devices. It is…


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Calculating Power Factor

Calculating Power Factor

As was mentioned before, the angle of this “power…


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Applying Ohm’s Law—Rules and Methods for Circuit Analysis

Applying Ohm’s Law—Rules and Methods for Circuit Analysis

When analyzing complex series and parallel circuits, it is easy to…


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Special-purpose Batteries

Special-purpose Batteries

Mercury Standard Cell Back in the early days of electrical measurement…


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Factorials

Factorials

Definition of a Factorial Denoted by the symbol “!” after…


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Noise Figure and Noise Temperature Calculator

Noise Figure and Noise Temperature Calculator

This calculator computes the noise figure and noise temperature in a system


Tools

Stripline Max Current Calculator

Stripline Max Current Calculator

A calculator designed to calculate the maximum current that a stripline can handle


Tools

Rules for Antiderivatives

Rules for Antiderivatives

Constant Rule     Rule of Sums     Rule of…


Textbook

Analog Lab - Introduction

Analog Lab - Introduction

In this series of hands-on electronics experiments, build analog circuits, including amplifiers, comparators, oscillators, and more. Following the step-by-step instructions will help you understand and appreciate analog systems.


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Encoder

Encoder

What is an Encoder? An encoder is a circuit that changes a set of…


Textbook

Parallel Resistor Calculator

Parallel Resistor Calculator

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.


Tools

Historical, Nonmechanical Memory Technologies

Historical, Nonmechanical Memory Technologies

Perhaps the most ingenious technique was that of the delay line. A…


Textbook

Ohm’s Law Practice Worksheet With Answers

Ohm’s Law Practice Worksheet With Answers

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


Worksheets - Linear Regulator

Shift Registers: Parallel-in, Serial-out (PISO) Conversion

Shift Registers: Parallel-in, Serial-out (PISO) Conversion

Parallel-in/ serial-out shift registers do everything that the…


Textbook

Example Circuits and Netlists

Example Circuits and Netlists

The following circuits are pre-tested netlists for SPICE 2g6, complete…


Textbook

Switches, Electrically Actuated (Relays)

Switches, Electrically Actuated (Relays)

The structure behind ladder logic is based on the electrical ladder…


Textbook

Peak to Peak Voltage Calculator (VP-P)

Peak to Peak Voltage Calculator (VP-P)

This calculator shows the peak-to-peak voltage (VP-P) value from the peak voltage, RMS voltage, or average voltage.


Tools

DC Lab - Potentiometer as a Rheostat

DC Lab - Potentiometer as a Rheostat

In this hands-on electronics experiment, you will use a potentiometer as a variable resistor to control the speed of a motor and learn how to connect a potentiometer as a rheostat.


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Introduction to Shift Registers

Introduction to Shift Registers

Shift registers, like counters, are a form of sequential…


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Op-Amp Practical Considerations

Op-Amp Practical Considerations

Real operational amplifiers have some imperfections compared to an…


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Electric Shock

Electric Shock

It is sometimes said regarding electrical safety that, Ït’s not the…


Worksheets - Linear Regulator

Multimeters

Multimeters

Seeing as how a common meter movement can be made to function as a…


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