What Is a Resistor?

The resistor is a passive electrical component that creates…

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What Is Meant By Electrical Resistance?

Different materials react to voltage in different ways. If a material…

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PTC Thermistor

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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Heater Resistor

What are Heater Resistors? Heater resistors are used whenever an…

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NTC Thermistor

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

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Braking Resistor

What is a Braking Resistor? The property of resistors to dissipate…

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Standard Resistor Power Ratings

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

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Electrical Resistivity

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

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Power Rating

What is the Power Rating of a Resistor? The power rating of a resistor…

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Thermistor

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

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Resistor Properties

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Q factor

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

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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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Capacitors in parallel

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

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Ceramic Capacitor

What are ceramic capacitors? A ceramic capacitor uses a ceramic…

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Resistor Color Code Calculator

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

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Power Resistor

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

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Power Factor And RMS Explained

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

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Trimmer Capacitor

What are trimmer capacitors? Trimmer capacitors are variable…

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Resistor Suppliers

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

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PTC Thermistor

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

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Basic AC Circuits

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

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Filter capacitor

Filter capacitors Capacitors are reactive elements, which make them…

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What Is Meant By Electrical Resistance?

Different materials react to voltage in different ways. If a material…

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Tantalum Capacitor

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

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Resistor Sizes and Packages

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

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Rheostat

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

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Foil Resistor

What is a Foil Resistor? The metal foil resistor has the best…

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About the Authors

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

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Capacitor Guide Intro

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

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Thermistor

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

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What Is Wye And Delta?

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

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Electric Field

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

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