NTC Thermistor

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

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Resistor Suppliers

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

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Power Resistor

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

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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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Blower Resistor

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

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Carbon Film Resistor

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

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Braking Resistor

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

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Electric Field

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

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About the Authors

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

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Capacitors in series

Capacitors in series Like other electrical elements, capacitors serve…

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Capacitance

What is capacitance? Electric capacitance is the ability of a…

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Rheostat

What is a Rheostat? A rheostat is a variable resistor which is used 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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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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Potentiometer

What is a Potentiometer? A potentiometer is a manually adjustable…

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Resistor SMD Code

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

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Trimpot

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

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Ohm’s Law

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

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Potentiometer Taper

What is Potentiometer Taper? Potentiometer taper is the relation…

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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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Digital Potentiometer

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

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Carbon Film Resistor

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

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Basic DC Circuit Theory

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

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Resistor Noise

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

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Ohm’s Law

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

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Current limiting

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Kirchhoff’s Laws

Gustav Robert Kirchhoff   Kirchhoff's laws are essential for…

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Resistor Properties

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

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Power Factor And RMS Explained

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

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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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Variable Resistor

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

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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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Air Capacitor

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

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Power Resistor

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

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Resistor Suppliers

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

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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