Shunt Resistor

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

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Varistor

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

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Variable Resistor

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

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Basic DC Circuit Theory

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

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PTC Thermistor

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

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Resistor Values

Standard Resistor Values In 1952, the IEC (International…

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Thermistor

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

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Resistor SMD Code

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

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NTC Thermistor

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

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Energy Storage

Capacitors used for energy storage Capacitors are devices which store…

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Dielectric Materials

Dielectric materials Dielectric materials are essentially insulators,…

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Capacitors in series

Capacitors in series Like other electrical elements, capacitors serve…

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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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What Is a Resistor?

The resistor is a passive electrical component that creates…

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Digital Potentiometer

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

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Current limiting

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Varistor

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

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Basic AC Circuits

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

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Electric Field

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

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Motor starting capacitor

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

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PTC Thermistor

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

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Resistor Capacitance

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

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Resistors in Parallel

How to Calculate the Equivalent Resistance for Resistors in Parallel?…

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AC Power Analysis In Reactive Circuits

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

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Resistors for LED Circuits

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

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Trimpot

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

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NTC Thermistor

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Resistor Inductance

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

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