Passive And Active Electronic Components

In a previous page, we discussed phasors, but we didn’t explore…

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Film Capacitor

What are film capacitors? Film capacitors are capacitors which use a…

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Metal Oxide Film Resistor

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

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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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Capacitors in parallel

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Electrical Resistivity

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

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Magneto Resistor

What is a Magneto Resistor Magneto resistors have a variable…

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Foil Resistor

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

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Carbon Film Resistor

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

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Fixed Resistor

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

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Impedance and Reactance

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

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About the Authors

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

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Resistor Symbols

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

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Thin and Thick Film

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

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Parasitic Inductance

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

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Basic DC Circuit Theory

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

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Rheostat

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

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Varistor

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

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Sinusoidal Steady State Power and Average Power

In this page, we will expand and reinforce our understanding of power…

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Potentiometer Taper

What is Potentiometer Taper? Potentiometer taper is the relation…

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NTC Thermistor

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

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Shunt Resistor

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

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Resistor Sizes and Packages

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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How To Calculate Power Factor Correction

As you now know, reactive components can cause a circuit’s power…

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Ceramic Capacitor

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

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Power Factor And RMS Explained

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

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Motor starting capacitor

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

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Electrical Resistivity

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Resistance of a Resistor

Resistance of a Resistor The function of a resistor is to oppose the…

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Q factor

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

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Impedance and Reactance

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

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Braking Resistor

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

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Metal Film Resistor

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

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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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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