Kirchhoff’s Laws

Gustav Robert Kirchhoff   Kirchhoff's laws are essential for…

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Ohm’s Law

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

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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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Thermistor

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

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Basic AC Circuits

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

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Film Capacitor

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

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Trimmer Capacitor

What are trimmer capacitors? Trimmer capacitors are variable…

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Varistor

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Basic DC Circuit Theory

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

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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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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Parasitic Inductance

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

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Power Resistor

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

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Resistor Inductance

What Is Resistor Inductance? Inductance is an electrical property of…

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AC Power Analysis In Reactive Circuits

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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About the Authors

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

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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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Foil Resistor

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

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Air Capacitor

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

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Resistor Noise

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

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Variable Resistor

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

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Thermistor

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

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What Is Meant By Electrical Resistance?

Different materials react to voltage in different ways. If a material…

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Heater Resistor

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

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Basic AC Circuits

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

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Power Factor And RMS Explained

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Resistor Suppliers

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

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Blower Resistor

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

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Filter capacitor

Filter capacitors Capacitors are reactive elements, which make them…

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Film Capacitor

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

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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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NTC Thermistor

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

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Resistor Capacitance

What Is Resistor Capacitance? Capacitance is an ability of a body to…

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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What Is a Resistor?

The resistor is a passive electrical component that creates…

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Electric Charge

What is electric charge? Electric charge is a fundamental physical…

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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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About the Authors

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

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