Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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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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AC Power Analysis In Reactive Circuits

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

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Air Capacitor

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

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Resistor Symbols

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

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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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Resistor SMD Code

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

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Standard Resistor Power Ratings

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

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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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Mica Capacitor

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

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Basic DC Circuit Theory

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

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Power Factor And RMS Explained

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

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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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Capacitance

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

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Q factor

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

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Motor starting capacitor

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Shunt Resistor

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

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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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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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About the Authors

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

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Ceramic Capacitor

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

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Rheostat

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

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Metal Film Resistor

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

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Motor starting capacitor

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Standard Resistor Power Ratings

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

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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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Electrolytic Capacitor

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

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Fixed Resistor

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

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Carbon Composition Resistor

An Introduction to Carbon Composition Resistors Carbon composition…

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Ohm’s Law

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

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Resistor Color Code

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

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Basic AC Circuits

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

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Impedance and Reactance

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

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Resistor Guide Intro

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

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Resistor Suppliers

When you are looking for electronic components or where to buy…

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Metal Oxide Film Resistor

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

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