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Variable Resistor

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

Basic DC Circuit Theory

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

Resistor SMD Code

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

Thermistor

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

Varistor

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

NTC Thermistor

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What are NTC Thermistors? NTC stands for "Negative Temperature…

PTC Thermistor

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What are PTC Thermistors? PTC stands for "Positive Temperature…

Resistor Values

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Standard Resistor Values In 1952, the IEC (International…

Shunt Resistor

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

Resistor Sizes and Packages

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

Carbon Film Resistor

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

Resistor Properties

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

Parallel resistor calculator

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Use this calculator to quickly calculate the equivalent resistance…

Tantalum Capacitor

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

Filter capacitor

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Filter capacitors Capacitors are reactive elements, which make them…

Power Factor And RMS Explained

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

Coupling and Decoupling

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Decoupling capacitors When designing a circuit, many novice engineers…

Complex Numbers, Phasors And Phase Shift

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The Effect of Phase We saw in the previous page that the voltage…

Importance Of Maximum Power Transfer

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

Resistor Noise

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

Metal Oxide Film Resistor

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

Ceramic Capacitor

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

Difference Between A Capacitor And Inductor

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Capacitors A capacitor exhibits a relatively large amount of…

Triangle Of Power And Power Factor

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In a purely resistive AC circuit, power is simply power. If we add…

Resistor Color Code Calculator

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This resistor color code calculator will help you determine the value…

Magneto Resistor

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What is a Magneto Resistor Magneto resistors have a variable…

Capacitors in series

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Capacitors in series Like other electrical elements, capacitors serve…

What Is a Resistor?

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The resistor is a passive electrical component that creates…

PTC Thermistor

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What are PTC Thermistors? PTC stands for "Positive Temperature…