All About Circuits

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Thyristor Application Circuits

Thyristor Application Circuits

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


Worksheets - Test & Measurement

Series DC Circuits Practice Worksheet with Answers

Series DC Circuits Practice Worksheet with Answers

In this circuit, three resistors receive the same amount of current (4…


Worksheets - Test & Measurement

Voltmeter Design

Voltmeter Design

As was stated earlier, most meter movements are sensitive devices.…


Textbook

Hand Calculator Use

Hand Calculator Use

To enter numbers in scientific notation into a hand calculator, there…


Textbook

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.


Textbook

Ammeter Design

Ammeter Design

What would happen to this meter movement, if connected directly to a…


Worksheets - Test & Measurement

DC Mesh Current Analysis

DC Mesh Current Analysis

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


Worksheets - Test & Measurement

Characteristic Impedance

Characteristic Impedance

Note the “50 ohm” rating printed on the jacket of the cable. What…


Worksheets - Test & Measurement

The Common-emitter Amplifier

The Common-emitter Amplifier

At the beginning of this chapter, it illustrates how transistors could…


Textbook

Safe Meter Usage

Safe Meter Usage

Using an electrical meter safely and efficiently is perhaps the most…


Textbook

Ohm’s Law - How Voltage, Current, and Resistance Relate

Ohm’s Law - How Voltage, Current, and Resistance Relate

The first, and perhaps most important, relationship between current,…


Textbook

Impedance

Impedance

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


Worksheets - Test & Measurement

Op-amp Circuits

Op-amp Circuits

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


Worksheets - Test & Measurement

Intro Lab - How to Use an Ammeter to Measure Current

Intro Lab - How to Use an Ammeter to Measure Current

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


Textbook

Optoelectronic Devices

Optoelectronic Devices

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


Worksheets - Test & Measurement

ElectroStatic Discharge

ElectroStatic Discharge

At the start of this book, we discussed static electricity and how it…


Textbook

Servo Motor Systems

Servo Motor Systems

Explain the operation of this “H-bridge” motor control circuit: At…


Worksheets - Test & Measurement

Wattmeter Design

Wattmeter Design

Power in an electric circuit is the product (multiplication) of…


Textbook

Radicals

Radicals

Definition of a Radical Given the expression where “x” is…


Textbook

Solving Unbalanced Wheatstone Bridge Circuits Via Mesh Current Method

Solving Unbalanced Wheatstone Bridge Circuits Via Mesh Current Method

An unbalanced Wheatstone bridge cannot be solved using simple series…


Textbook

Series and Parallel Inductors

Series and Parallel Inductors

When inductors are connected in series, the total inductance is the…


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Electric Shock Data

Electric Shock Data

The table of electric currents and their various bodily effects was…


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Batteries

Batteries

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


Worksheets - Test & Measurement

Oscillator Circuits

Oscillator Circuits

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


Worksheets - Test & Measurement

Early Tube History

Early Tube History

Thomas Edison, that prolific American inventor, is often credited with…


Textbook

Differential Equations

Differential Equations

As opposed to normal equations where the solution is a number, a…


Textbook

RC Time Constant Calculator

RC Time Constant Calculator

The time constant of a series RC circuit is the product of the resistance and capacitance. Given two of the three values—resistance, capacitance, or RC time constant—this tool will calculate the missing third variable.


Tools

Decibel Calculator

Decibel Calculator

This calculator will convert voltage or power gains into decibels. Enter one of the three values and the calculator will output the other two.


Tools

Binary Count Sequence

Binary Count Sequence

If we examine a four-bit binary count sequence from 0000 to 1111, a…


Textbook

Series-parallel R, L, and C

Series-parallel R, L, and C

Now that we’ve seen how series and parallel AC circuit analysis…


Textbook

Design Project: AC-DC Power Supply

Design Project: AC-DC Power Supply

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


Worksheets - Test & Measurement

Si Lab - A Simple BJT Current Mirror Circuit

Si Lab - A Simple BJT Current Mirror Circuit

In this hands-on semiconductor electronics experiment, build a simple current mirror using matched bipolar junction transistors (BJTs) and learn about current mirror circuit limitations, the temperature dependence of BJTs, and thermal runaway.


Textbook

Safety Grounding

Safety Grounding

In simple AC power systems, one of the two conductors is typically…


Worksheets - Test & Measurement

Wiring Color Codes Infographic

Wiring Color Codes Infographic

Wiring Color Codes Infographic. Released under the Creative Commons…


Textbook

Phase-Locked Loops

Phase-Locked Loops

This is a schematic for a simple VCO: The oscillator is of the RC…


Worksheets - Test & Measurement

Simultaneous Equations for Circuit Analysis

Simultaneous Equations for Circuit Analysis

Solve this equation for the value of x: x + 5 = 8 How many exact…


Worksheets - Test & Measurement

Conversion From Decimal Numeration

Conversion From Decimal Numeration

Because octal and hexadecimal numeration systems have bases that are…


Textbook

Fundamentals of SPICE programming

Fundamentals of SPICE programming

Programming a circuit simulation with SPICE is much like programming…


Textbook

Batteries

Batteries

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


Worksheets - Test & Measurement

The Command-line Interface

The Command-line Interface

If you’ve used DOS or UNIX operating systems before in a…


Textbook

Encoders and Decoders

Encoders and Decoders

What does it mean, in general terms, to encode something? Conversely,…


Worksheets - Test & Measurement

Critical Temperatures for Superconductors

Critical Temperatures for Superconductors

Critical temperatures given in Kelvins Material Element/Alloy Critical…


Textbook

Programmable Logic Controllers (PLC)

Programmable Logic Controllers (PLC)

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


Textbook

The Common-emitter Amplifier

The Common-emitter Amplifier

At the beginning of this chapter, it illustrates how transistors could…


Textbook

Attenuators

Attenuators

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


Textbook

Early Tube History

Early Tube History

Thomas Edison, that prolific American inventor, is often credited with…


Textbook

Kirchhoff’s Laws

Kirchhoff’s Laws

Many electronic circuits use what is called a split or a dual power…


Worksheets - Test & Measurement

Capacitor Types

Capacitor Types

A capacitor is a passive two-terminal electronic component that…


Textbook

Basic Ohmmeter Use

Basic Ohmmeter Use

Explain how an ohmmeter is able to measure the resistance of a…


Worksheets - Test & Measurement

Decoder

Decoder

A decoder is a circuit that changes a code into a set of signals. It…


Textbook

Si Lab - Intro to Discrete Semiconductor Circuits

Si Lab - Intro to Discrete Semiconductor Circuits

In these hands-on semiconductor electronics experiments, learn to build and test circuits using discrete silicon (Si) devices, including diodes and transistors. Also, learn important circuit designs, including rectifiers, current mirrors, amplifiers, and oscillators.


Textbook

Definite Integrals and the Fundamental Theorem of Calculus

Definite Integrals and the Fundamental Theorem of Calculus

        RELATED WORKSHEET: Calculus for Electric…


Textbook

Frequency and Phase Measurement

Frequency and Phase Measurement

An important electrical quantity with no equivalent in DC circuits is…


Textbook

Rectangle Loop Inductance Calculator

Rectangle Loop Inductance Calculator

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


Tools

Active Filters

Active Filters

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


Worksheets - Test & Measurement

Circuit Effects

Circuit Effects

The principle of non-sinusoidal, repeating waveforms being equivalent…


Textbook

Protective Relays

Protective Relays

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


Textbook

BJT Quirks

BJT Quirks

An ideal transistor would show 0% distortion in amplifying a signal.…


Textbook