PTC Thermistor

What are PTC Thermistors? PTC stands for "Positive Temperature…

Textbook

Resistor Values

Standard Resistor Values In 1952, the IEC (International…

Textbook

Varistor

What is a Varistor? A varistor is a voltage dependent resistor (VDR).…

Textbook

Resistor SMD Code

What are SMD Resistors?   SMD resistors on a printed circuit…

Textbook

Basic DC Circuit Theory

Voltage and Current Relationship The earth is a dynamic place. Objects…

Textbook

Variable Resistor

What is a Variable Resistor? A variable resistor is a resistor of…

Textbook

Shunt Resistor

Definition Shunt Resistor A shunt resistor is used to measure electric…

Textbook

Thermistor

What is a Thermistor? A thermistor is a temperature sensitive…

Textbook

NTC Thermistor

What are NTC Thermistors? NTC stands for "Negative Temperature…

Textbook

Basic AC Circuits

We started out this chapter by discussing power in DC circuits. Now,…

Textbook

Sinusoidal Steady State Power and Average Power

In this page, we will expand and reinforce our understanding of power…

Textbook

Triangle Of Power And Power Factor

In a purely resistive AC circuit, power is simply power. If we add…

Textbook

Blower Resistor

What is a Blower Resistor? Blower resistors are resistors which are…

Textbook

Resistor Sizes and Packages

Resistors are available in a large number of different package styles…

Textbook

Air Capacitor

What are air capacitors? Air capacitors are capacitors which use air…

Textbook

Electrical Resistivity

What Is Electrical Resistivity? Electrical resistivity is a measure of…

Textbook

Varistor

What is a Varistor? A varistor is a voltage dependent resistor (VDR).…

Textbook

Metal Oxide Film Resistor

What are Metal Oxide Film Resistors? Metal-oxide film resistors are…

Textbook

How To Calculate Power Factor Correction

As you now know, reactive components can cause a circuit’s power…

Textbook

Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

Textbook

Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

Textbook

Current limiting

Textbook

What Is Wye And Delta?

We learned in a previous page that resistors can be connected in…

Textbook

Carbon Film Resistor

What is a Carbon Film Resistor? Carbon film resistors are a type of…

Textbook

PTC Thermistor

What are PTC Thermistors? PTC stands for "Positive Temperature…

Textbook

Trimpot

What is a Trimpot? A trimpot or trimmer potentiometer is a small…

Textbook

Electrolytic Capacitor

What are electrolytic capacitors? An electrolytic capacitor is a type…

Textbook

Mica Capacitor

What are mica capacitors? Mica is a group of natural minerals. Silver…

Textbook

Filter capacitor

Filter capacitors Capacitors are reactive elements, which make them…

Textbook

Resistor Guide Intro

Welcome to the Resistor Guide! The Resistor Guide will guide you in…

Textbook

Resistance of a Resistor

Resistance of a Resistor The function of a resistor is to oppose the…

Textbook

Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

Textbook

What Is a Resistor?

The resistor is a passive electrical component that creates…

Textbook

Resistor Symbols

All types of resistors have their own resistor symbols which are used…

Textbook

Mica Capacitor

What are mica capacitors? Mica is a group of natural minerals. Silver…

Textbook

Resistor SMD Code

What are SMD Resistors?   SMD resistors on a printed circuit…

Textbook

Resistor Color Code

How Does the Resistor Color Code Work? Check out the All About…

Textbook

Potentiometer Taper

What is Potentiometer Taper? Potentiometer taper is the relation…

Textbook

Resistor Capacitance

What Is Resistor Capacitance? Capacitance is an ability of a body to…

Textbook

Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

Textbook

About the Authors

Robert Keim Robert Keim graduated from the University of California,…

Textbook

Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

Textbook

Capacitors in parallel

Capacitors, like other electrical elements, can be connected to other…

Textbook

Measurements In Electrical Engineering

Powers of Ten A numeral system is a method of using certain digits to…

Textbook

Standard Resistor Power Ratings

An electrical device’s power rating provides a general idea of…

Textbook

Resistor Noise

What is Resistor Noise? Noise is an unwanted phenomenon for resistors.…

Textbook

Resistors for LED Circuits

Resistors in Light Emitting Diode (LED) Circuits An LED (Light…

Textbook

Complex Numbers, Phasors And Phase Shift

The Effect of Phase We saw in the previous page that the voltage…

Textbook

Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

Textbook