Varistor

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

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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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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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Capacitors in parallel

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

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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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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Power Factor And RMS Explained

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

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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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Electrolytic Capacitor

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

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AC Power Analysis In Reactive Circuits

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

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Varistor

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

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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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Impedance and Reactance

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

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About the Authors

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

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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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Resistors in Series

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

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Q factor

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

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Basic DC Circuit Theory

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

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Braking Resistor

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

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Metal Oxide Film Resistor

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Electrical Resistivity

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

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Carbon Film Resistor

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Variable Resistor

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

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Air Capacitor

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

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Tantalum Capacitor

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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