Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Motor starting capacitor

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

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Current limiting

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Potentiometer Taper

What is Potentiometer Taper? Potentiometer taper is the relation…

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Resistor Guide Intro

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

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Capacitors in parallel

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

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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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Impedance and Reactance

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

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Heater Resistor

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

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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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Rheostat

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

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Trimpot

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

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Electrical Resistivity

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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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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Resistor Color Code Calculator

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

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Parasitic Inductance

What is inductance? Electric inductance is a property of all…

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Mica Capacitor

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

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Power Factor And RMS Explained

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

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Resistor Sizes and Packages

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

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Resistors for LED Circuits

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

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Resistor Color Code Calculator

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

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Heater Resistor

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

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How To Calculate Power Factor Correction

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

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Electric Field

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

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Measurements In Electrical Engineering

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

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Wirewound Resistor

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

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Basic DC Circuit Theory

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

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Motor starting capacitor

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

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Potentiometer

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

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Metal Oxide Film Resistor

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

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Impedance and Reactance

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Metal Film Resistor

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

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Standard Resistor Power Ratings

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

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Varistor

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

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