Varistor

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

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Power Factor And RMS Explained

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

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Electrolytic Capacitor

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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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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Triangle Of Power And Power Factor

In a purely resistive AC circuit, power is simply power. If we add…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Varistor

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

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Capacitors in parallel

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

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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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AC Power Analysis In Reactive Circuits

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

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Resistor Color Code

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

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AC Power Analysis In Reactive Circuits

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

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About the Authors

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

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Basic AC Circuits

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

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Power Factor And RMS Explained

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

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Capacitance

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

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Resistors in Parallel

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

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Capacitors in series

Capacitors in series Like other electrical elements, capacitors serve…

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Shunt Resistor

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

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Resistors for LED Circuits

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

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Resistor Capacitance

What Is Resistor Capacitance? Capacitance is an ability of a body to…

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Electric Charge

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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Wirewound Resistor

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

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Mica Capacitor

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

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PTC Thermistor

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

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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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Power Resistor

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

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Filter capacitor

Filter capacitors Capacitors are reactive elements, which make them…

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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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