Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Air Capacitor

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

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Electric Field

What is an electric field? An electric field is a special state that…

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Kirchhoff’s Laws

Gustav Robert Kirchhoff   Kirchhoff's laws are essential for…

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Resistor Noise

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

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Power Resistor

What Are Power Resistors? Power resistors are designed to withstand…

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Resistors in Series

How to Calculate the Equivalent Resistance For Resistors in Series?…

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Current limiting

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Ohm’s Law

What Is Ohm’s Law? Ohm’s law states that the electrical…

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Metal Oxide Film Resistor

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

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Capacitor Guide Intro

Welcome to the Capacitor Guide! Your guide in the world of capacitors.…

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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Thin and Thick Film

What are Thin and Thick Film Resistors? Thin and thick film resistors…

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Metal Film Resistor

Metal Film Resistors Metal film resistors have a thin metal layer as…

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Resistor Guide Intro

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

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Wirewound Resistor

What is a Wirewound Resistor? A wirewound resistor is an electrical…

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Carbon Film Resistor

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

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Passive And Active Electronic Components

In a previous page, we discussed phasors, but we didn’t explore…

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Resistor Sizes and Packages

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

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Resistor Color Code

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

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Motor starting capacitor

Motor capacitors AC induction motors use a rotating magnetic field to…

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Photoresistor

What are Photoresistors? Photoresistors, also known as light dependent…

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Rheostat

What is a Rheostat? A rheostat is a variable resistor which is used to…

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Resistors in Series

How to Calculate the Equivalent Resistance For Resistors in Series?…

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Metal Film Resistor

Metal Film Resistors Metal film resistors have a thin metal layer as…

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What Is a Resistor?

The resistor is a passive electrical component that creates…

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Resistor SMD Code

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

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Electrical Resistivity

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

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Potentiometer

What is a Potentiometer? A potentiometer is a manually adjustable…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Digital Potentiometer

What is a Digital Potentiometer? A digital potentiometer (also known…

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Resistor Noise

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

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Triangle Of Power And Power Factor

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

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Capacitors in series

Capacitors in series Like other electrical elements, capacitors serve…

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Impedance and Reactance

Impedance and reactance An element in a DC circuit can be described…

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Resistors in Parallel

How to Calculate the Equivalent Resistance for Resistors in Parallel?…

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NTC Thermistor

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

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Thermistor

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

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Basic AC Circuits

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

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Resistor Books and Online Resources

On this page you will find a collection of valuable books and other…

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Carbon Film Resistor

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

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