Potentiometer

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

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Capacitors in parallel

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Electric Field

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

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Carbon Film Resistor

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

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Motor starting capacitor

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

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Blower Resistor

What is a Blower Resistor? Blower resistors are resistors which are…

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Resistor SMD Code

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

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Ohm’s Law

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

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Standard Resistor Power Ratings

An electrical device’s power rating provides a general idea of…

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Varistor

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

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Resistor Noise

What is Resistor Noise? Noise is an unwanted phenomenon for resistors.…

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Basic DC Circuit Theory

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

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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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Difference Between A Capacitor And Inductor

Capacitors A capacitor exhibits a relatively large amount of…

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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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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Thermistor

What is a Thermistor? A thermistor is a temperature sensitive…

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Air Capacitor

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

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Fixed Resistor

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

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Braking Resistor

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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What Is Meant By Electrical Resistance?

Different materials react to voltage in different ways. If a material…

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Capacitors in parallel

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

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Filter capacitor

Filter capacitors Capacitors are reactive elements, which make them…

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Ceramic Capacitor

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

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Power Resistor

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

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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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Importance Of Maximum Power Transfer

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

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Capacitor Guide Intro

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

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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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Carbon Film Resistor

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

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Parasitic Inductance

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

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Electric Field

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

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Metal Film Resistor

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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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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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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