Varistor

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

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Thermistor

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

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Shunt Resistor

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

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PTC Thermistor

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

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Variable Resistor

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

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NTC Thermistor

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

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Varistor

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Basic DC Circuit Theory

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

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Resistor SMD Code

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

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Resistor Sizes and Packages

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

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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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Blower Resistor

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

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Electric Field

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

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PTC Thermistor

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

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Thin and Thick Film

What are Thin and Thick Film Resistors? Thin and thick film resistors…

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Resistor Properties

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

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Electrical Resistivity

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

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Braking Resistor

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

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Wirewound Resistor

What is a Wirewound Resistor? A wirewound resistor is an electrical…

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Measurements In Electrical Engineering

Powers of Ten A numeral system is a method of using certain digits to…

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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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Trimpot

What is a Trimpot? A trimpot or trimmer potentiometer is a small…

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Heater Resistor

What are Heater Resistors? Heater resistors are used whenever an…

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Foil Resistor

What is a Foil Resistor? The metal foil resistor has the best…

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Resistor Symbols

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

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Q factor

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

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What Is a Resistor?

The resistor is a passive electrical component that creates…

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What Is Wye And Delta?

We learned in a previous page that resistors can be connected in…

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