Q factor

Q Factor definition The Q factor of a capacitor, also known as the…

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Resistor Color Code Calculator

This resistor color code calculator will help you determine the value…

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Wirewound Resistor

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

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Resistor Properties

The function of resistors is to oppose the flow of electric current in…

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Shunt Resistor

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Impedance and Reactance

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

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Standard Resistor Power Ratings

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

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NTC Thermistor

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

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Motor starting capacitor

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

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Varistor

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Resistor Sizes and Packages

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

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Capacitor Guide Intro

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

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Resistor Noise

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

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Resistor Suppliers

When you are looking for electronic components or where to buy…

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Power Resistor

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Ohm’s Law

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

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Resistance of a Resistor

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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Resistor Guide Intro

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

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Carbon Film Resistor

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

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Thin and Thick Film

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Metal Film Resistor

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

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Motor starting capacitor

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

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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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Capacitor Guide Intro

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

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Metal Oxide Film Resistor

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

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Ohm’s Law

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

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Resistor Color Code

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

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Resistor Sizes and Packages

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

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Wirewound Resistor

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

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About the Authors

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

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Mica Capacitor

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

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Tantalum Capacitor

What are tantalum capacitors? Tantalum capacitors are a subtype of…

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Thermistor

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

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Resistor SMD Code

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

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Resistors in Parallel

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

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Capacitors in parallel

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

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Power Resistor

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

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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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Basic AC Circuits

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

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Trimpot

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

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Power Factor And RMS Explained

In the previous page, we saw that the mathematical representation of…

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AC Power Analysis In Reactive Circuits

We already know that purely reactive components (or purely reactive…

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Standard Resistor Power Ratings

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

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Photoresistor

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

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Capacitance

What is capacitance? Electric capacitance is the ability of a…

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Sinusoidal Steady State Power and Average Power

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

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Carbon Film Resistor

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

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Capacitor Guide Intro

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

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Variable Resistor

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

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