Varistor

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

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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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Electrolytic Capacitor

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

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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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AC Power Analysis In Reactive Circuits

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

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Capacitors in parallel

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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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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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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Q factor

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

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Potentiometer

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

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Difference Between A Capacitor And Inductor

Capacitors A capacitor exhibits a relatively large amount of…

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Variable Resistor

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

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Motor starting capacitor

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

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Photoresistor

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

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Fixed Resistor

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

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Basic AC Circuits

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

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Shunt Resistor

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Capacitance

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

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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 Symbols

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

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AC Power Analysis In Reactive Circuits

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Resistor Sizes and Packages

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

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Capacitor Guide Intro

Welcome to the Capacitor Guide! Your guide in the world of capacitors.…

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Electric Charge

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

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Rheostat

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

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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