Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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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 parallel

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

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AC Power Analysis In Reactive Circuits

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

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Power Factor And RMS Explained

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

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Varistor

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

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Electrolytic Capacitor

What are electrolytic capacitors? An electrolytic capacitor is a type…

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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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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How To Calculate Power Factor Correction

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

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Photoresistor

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

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About the Authors

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

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Difference Between A Capacitor And Inductor

Capacitors A capacitor exhibits a relatively large amount of…

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Ohm’s Law

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

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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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Shunt Resistor

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

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Thin and Thick Film

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

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Power Rating

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

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Capacitance

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

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Resistor SMD Code

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

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Parasitic Inductance

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

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Trimpot

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

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Magneto Resistor

What is a Magneto Resistor Magneto resistors have a variable…

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Resistor Properties

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

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Fixed Resistor

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

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Varistor

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Electric Charge

What is electric charge? Electric charge is a fundamental physical…

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Electrolytic Capacitor

What are electrolytic capacitors? An electrolytic capacitor is a type…

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Digital Potentiometer

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

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Heater Resistor

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

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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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Electric Charge

What is electric charge? Electric charge is a fundamental physical…

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Wirewound Resistor

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

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Resistors in Parallel

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

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Air Capacitor

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

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Importance Of Maximum Power Transfer

This page explores the issue of how to design a system that will…

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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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Carbon Film Resistor

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

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Impedance and Reactance

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

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Variable Resistor

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

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About the Authors

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

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Photoresistor

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

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Resistor Properties

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

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Resistor Guide Intro

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

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Fixed Resistor

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

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Potentiometer

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

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