Digital Potentiometer

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

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Electrical Resistivity

What Is Electrical Resistivity? Electrical resistivity is a measure of…

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Ceramic Capacitor

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

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Resistor Color Code Calculator

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

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Resistor Symbols

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

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Power Rating

What is the Power Rating of a Resistor? The power rating of a resistor…

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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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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Parasitic Inductance

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

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Rheostat

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

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Power Resistor

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

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Photoresistor

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

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Standard Resistor Power Ratings

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

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Resistor Books and Online Resources

On this page you will find a collection of valuable books and other…

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Impedance and Reactance

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

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Thermistor

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

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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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