Electrical Engineering Guides

Basic Electrical

Working Principle of a Capacitor

To demonstrate how does a capacitor work , let us consider a most basic structure of a capacitor. It is made of two parallel conducting plates separated by a dielectric that is parallel plate capacitor . When we connect a battery (DC Voltage Source ) across the capacitor , one plate (plate-I) gets a

By Electrical4u 03/11, 2024
Basic Electrical

Charging a Capacitor

Whenever we connect an uncharged or partly charged capacitor with a voltage source whos voltage is more than the voltage of the capacitor (in case of partly charged capacitor) it recieves charge from the source and the voltage across the capacitor rises exponentially until it becomes equal and oppos

By Electrical4u 03/11, 2024
Basic Electrical

How To Test A Capacitor: A Complete Guide

A capacitor is a device that stores electric charge and can release it when needed. Capacitors are widely used in various electrical and electronic circuits, such as those in heating and air conditioning systems, power supplies, radios, and computers. Capacitors can have different shapes, sizes, and

By Electrical4u 03/11, 2024
Basic Electrical

Equivalent Inductance of Series and Parallel Inductors (With Mutual Inductance)

When inductors are connected in series, the equivalent inductance of the combination will be the sum of all individual inductors’ inductance. This is just like the equivalent resistance of series-connected resistors . But in the case of inductors , we sometimes have to consider the effect of mutual

By Electrical4u 03/11, 2024
Basic Electrical

Mutual Induction and Mutual Inductance with Dot Convention

Definition of Mutual induction Mutual induction is a phenomenon when a coil gets induced in EMF across it due to rate of change current in adjacent coil in such a way that the flux of one coil current gets linkage of another coil. Definition of Mutual Inductance Mutual Inductance is the ratio betwee

By Electrical4u 03/11, 2024
Basic Electrical

Self Induction and Self Inductance and Derivation of Inductance

Self Induction Self induction is a phenomenon by which a changing electric current produces an induced emf across the coil itself. Self Inductance Self inductance is the ratio of induced electromotive force (EMF) across a coil to the rate of change of current through the coil. We denote self inducta

By Electrical4u 03/11, 2024
Basic Electrical

Series And Parallel Inductors (Formula & Example Problems)

What is an Inductor? An inductor (also known as an electrical inductor) is defined as a two-terminal passive electrical element that stores energy in the form of a magnetic field when electric current flows through it. It is also called a coil, chokes, or reactor . An inductor is simply a coil of wi

By Electrical4u 03/11, 2024
Basic Electrical

The Different Types of Electrical Resistors Explained (And How They Are Used)

What is an Electrical Resistor? A resistor is a passive component in a circuit which provides resistance to the flow of current . There are many different types of resistors. These resistors vary in their construction, power dissipation capacities, and tolerance to various parameters (such as temper

By Electrical4u 03/11, 2024
Basic Electrical

Bleeder Resistor: What is it, and Why is it Used?

What is a Bleeder Resistor? A bleeder resistor is a standard resistor connected in parallel with the output of a high-voltage power supply circuit for the purpose of discharging the electric charge stored in the power supply’s filter capacitors when the equipment is turned OFF. This is done for safe

By Electrical4u 03/11, 2024
Basic Electrical

Ballast Resistor: What is it?

What is a Ballast Resistor? A ballast resistor is defined as a resistor inserted into a circuit to minimize current . Ballast resistors also help to avoid over-current faults in a circuit. An “electric ballast” is a more general term used to refer to an electrical device used to maintain a circuit’s

By Electrical4u 03/11, 2024
Basic Electrical

Electrical Resistor: What is it and What Does it Do? (Examples Included)

What is an Electrical Resistor? A resistor (also known as an electrical resistor) is defined as a two-terminal passive electrical element that provides electrical resistance to current flow. Resistance is a measure of the opposition to the flow of current in a resistor. The larger a resistor’s resis

By Electrical4u 03/11, 2024
Basic Electrical

Shunt Resistor: What is it And How Does it Work?

What is a Shunt Resistor? A shunt resistor (or shunt) is defined as a device that creates a low resistance path to force most of the electric current through the circuit to flow through this path. In most cases, a shunt resistor is made up of a material having a low-temperature coefficient of resist

By Electrical4u 03/11, 2024

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Working Principle of a Capacitor

Charging a Capacitor

How To Test A Capacitor: A Complete Guide

Equivalent Inductance of Series and Parallel Inductors (With Mutual Inductance)

Mutual Induction and Mutual Inductance with Dot Convention

Self Induction and Self Inductance and Derivation of Inductance

Series And Parallel Inductors (Formula & Example Problems)

The Different Types of Electrical Resistors Explained (And How They Are Used)

Bleeder Resistor: What is it, and Why is it Used?

Ballast Resistor: What is it?

Electrical Resistor: What is it and What Does it Do? (Examples Included)

Shunt Resistor: What is it And How Does it Work?

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