Varistor

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Electrolytic Capacitor

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

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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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Varistor

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

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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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Power Factor And RMS Explained

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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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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Resistor Guide Intro

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

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Resistor Properties

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

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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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Braking Resistor

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

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Current limiting

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Metal Film Resistor

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

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Variable Resistor

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

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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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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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Ceramic Capacitor

What are ceramic capacitors? A ceramic capacitor uses a ceramic…

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Resistors for LED Circuits

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

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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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Trimpot

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

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Digital Potentiometer

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

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Resistor Capacitance

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

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Resistor Sizes and Packages

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

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Kirchhoff’s Laws

Gustav Robert Kirchhoff   Kirchhoff's laws are essential for…

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Electric Field

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

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