Motor starting capacitor

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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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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Resistor Noise

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

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Air Capacitor

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

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Resistor Symbols

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

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Thin and Thick Film

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

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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 Sizes and Packages

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

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Complex Numbers, Phasors And Phase Shift

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

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Standard Resistor Power Ratings

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

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Trimmer Capacitor

What are trimmer capacitors? Trimmer capacitors are variable…

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Electric Field

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Metal Oxide Film Resistor

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

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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 Color Code Calculator

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

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Current limiting

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Wirewound Resistor

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

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Potentiometer

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

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Kirchhoff’s Laws

Gustav Robert Kirchhoff   Kirchhoff's laws are essential for…

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Potentiometer Taper

What is Potentiometer Taper? Potentiometer taper is the relation…

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Air Capacitor

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

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Fixed Resistor

What is a Fixed Resistor? Fixed value resistors have a defined ohmic…

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Motor starting capacitor

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

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Basic DC Circuit Theory

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

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Pull-up and Pull-down Resistors

What Are Pull-up Resistors? Pull-up resistors are resistors used in…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Photoresistor

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

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Resistor Symbols

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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What Is a Resistor?

The resistor is a passive electrical component that creates…

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Shunt Resistor

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

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Power Resistor

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

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Rheostat

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

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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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Resistors in Series

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

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Mica Capacitor

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

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Magneto Resistor

What is a Magneto Resistor Magneto resistors have a variable…

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Resistors in Parallel

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

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