Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Standard Resistor Power Ratings

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

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Power Rating

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

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Variable Resistor

What is a Variable Resistor? A variable resistor is a resistor 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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Photoresistor

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Polymer Capacitor

What are polymer capacitors? Polymer capacitors are capacitors which…

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Fixed Resistor

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

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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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Resistor Noise

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

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Resistors for LED Circuits

Resistors in Light Emitting Diode (LED) Circuits An LED (Light…

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Film Capacitor

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

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Electric Charge

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

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Metal Film Resistor

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

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Difference Between A Capacitor And Inductor

Capacitors A capacitor exhibits a relatively large amount of…

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Coupling and Decoupling

Decoupling capacitors When designing a circuit, many novice engineers…

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Electric Field

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

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AC Power Analysis In Reactive Circuits

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

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Heater Resistor

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

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Resistor Inductance

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

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Capacitance

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

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Motor starting capacitor

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

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Capacitors in parallel

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

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Resistor Noise

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

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Resistor Inductance

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

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NTC Thermistor

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

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Basic DC Circuit Theory

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

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Thin and Thick Film

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

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Ohm’s Law

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

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Tantalum Capacitor

What are tantalum capacitors? Tantalum capacitors are a subtype of…

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Foil Resistor

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

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Resistor Sizes and Packages

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Difference Between A Capacitor And Inductor

Capacitors A capacitor exhibits a relatively large amount of…

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Fixed Resistor

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

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Understanding Electrical Transformers

AC electrical systems make extensive use of transformers. A…

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Parallel resistor calculator

Use this calculator to quickly calculate the equivalent resistance…

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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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What Is Wye And Delta?

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

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PTC Thermistor

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

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