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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Varistor

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

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Importance Of Maximum Power Transfer

This page explores the issue of how to design a system that will…

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Capacitor Guide Intro

Welcome to the Capacitor Guide! Your guide in the world of capacitors.…

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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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Shunt Resistor

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

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Temperature Coefficient of Resistance

Resistance Changes with Temperature The temperature coefficient of…

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Basic DC Circuit Theory

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

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Power Factor And RMS Explained

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

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Carbon Film Resistor

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

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Standard Resistor Power Ratings

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

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Resistor Inductance

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

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Electric Field

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

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Magneto Resistor

What is a Magneto Resistor Magneto resistors have a variable…

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Resistors in Series

How to Calculate the Equivalent Resistance For Resistors in Series?…

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Triangle Of Power And Power Factor

In a purely resistive AC circuit, power is simply power. If we add…

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AC Power Analysis In Reactive Circuits

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

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Fixed Resistor

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

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Supercapacitor

What are supercapacitors? Supercapacitors are electronic devices which…

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Air Capacitor

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

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