Found 131 Articles for Utilization of Electrical Energy

Difference between Lithium-Metal and Lithium-Ion Batteries

Manish Kumar Saini
Updated on 07-Aug-2023 11:20:30

2K+ Views

In electrical and electronics, a battery is an electrochemical device that can convert chemical energy into electrical energy and vice-versa. Batteries are one of crucial component in a portable electronic device like smartphone, laptop, remote controls, etc. Depending on the charging characteristics, batteries can be classified into two types namely, rechargeable battery and non-rechargeable battery. A rechargeable battery, also known as "secondary battery", can be used repeatedly by charging it again and again. A non-rechargeable battery, also known as "primary battery", cannot be recharged once it used. In this article, we will explore two common ... Read More

What is Photovoltaic or Solar Cell? – Construction, Working and Advantages

Manish Kumar Saini
Updated on 27-Apr-2022 13:23:43

12K+ Views

An electrical device which converts light energy into electrical energy through the photovoltaic effect is known as photovoltaic cell or PV cell or solar cell. A photovoltaic cell is basically a specially designed p-n junction diode.Construction and Working of Photovoltaic CellThe construction of a photovoltaic cell is shown in the following figure.A photovoltaic cell consists of a base metal plate and it is made of either steel or aluminum over which a metallic selenium layer is situated which is light sensitive and acts as the positive terminal.An electrically conducting layer of cadmium oxide is applied by sputtering over the selenium ... Read More

What is LED Lamp? – Construction, Working, Advantages & Applications

Manish Kumar Saini
Updated on 27-Apr-2022 13:22:07

10K+ Views

LED LampAn optoelectronic device which emits light based on the principle of electroluminescence is known as LED (Light Emitting Diode) lamp.Electroluminescence is the emission of light due to the interaction of an electric field with a suitable solid. It was noticed in 1962 that a forward biased gallium-arsenide junction was found to be an efficient emitter of radiation.In case of electroluminescent p-n junctions, when biased in the forward direction, some of the energy dissipated is converted into light and hence, these are also called as semi-conductor lamps.Construction of LED LampFor the construction of LED lamps, following semiconductor materials are used ... Read More

What is Electropolishing? – Process, Advantages and Applications

Manish Kumar Saini
Updated on 27-Apr-2022 13:19:45

615 Views

An electrochemical process that removes material from a metallic workpiece is known as electropolishing. It is also known as electrochemical polishing or electrolytic polishing.Electro-polishing uses a combination of rectified current and a blended chemical electrolyte bath to remove flaws from the surface of a metal part. Electropolishing is often described as the reverse of electro-plating.Process of ElectropolishingThe schematic arrangement for the electropolishing is shown in the figure.In electro-polishing, the metallic workpiece is immersed in a temperature controlled bath of electrolyte and serves as the anode as it is connected to the positive terminal of a DC power supply.The negative terminal ... Read More

What is Electrodeposition? (Factors Affecting the Quality of Electrodeposition)

Manish Kumar Saini
Updated on 27-Apr-2022 13:18:09

5K+ Views

What is Electrodeposition?An electrolytic process by which one metal is deposited over other metal or non-metal is known as electrodeposition.Electrodeposition is widely used for decorative, protective and functional purposes. The process of electrodeposition includes −Electroplating − It is the process of deposition of metal over any metallic or non-metallic surfaces for protecting the metals from corrosion.Electro metallization − It is a process by which a metal can be deposited on a conducting base for decorative or protective purposes.Electro typing − It is a process used to reproduce printing, set up typing and medals, etc.Electro forming − It is a process ... Read More

What is Electric Traction? – Definition, Advantages and Disadvantages

Manish Kumar Saini
Updated on 27-Apr-2022 13:15:19

15K+ Views

Electric TractionThe action of pulling something over a surface (especially a road or a track) is known as traction. The action of drawing of vehicles by electric power derived from overhead wires, third rail, storage batteries or diesel generators mounted on the vehicles is known as electric traction. In simple words, the traction system which uses electric power for its operation is known as electric traction.The electric traction system is widely used in electric trains, tramcars, trolley buses and hybrid vehicles, etc.Advantages of Electric TractionThe major advantages of electric traction system over other types of traction (such as steam traction) ... Read More

What is an Individual Electric Drive? (Types of Electric Drive)

Manish Kumar Saini
Updated on 27-Apr-2022 13:13:07

3K+ Views

The combination of an electric motor, energy transmitting shaft and control devices for motion control is known as electric drive. The following figure shows the block diagram of a typical electric drive.Based on their assembly, electric drives can be of the following three types −Individual DriveGroup DriveMulti-motor driveIn this article, let's check the advantages and disadvantages of using an Individual Electric Drive.What is an Individual Electric Drive?When an individual machine is fitted with its own electric motor, then the electric drive is known as individual electric drive. In case of individual electric drive, each operator has complete control on his ... Read More

What is an Electric Drive? – Block Diagram, Advantages and Disadvantages

Manish Kumar Saini
Updated on 27-Apr-2022 13:10:04

9K+ Views

What is an Electric Drive?The combination of an electric motor, energy transmitting shaft and control device for motion control is known as electric drive. The following figure shows the block diagram of a typical electric drive.Based on their assembly, electric drives can be of the following three types −Individual DriveGroup DriveMulti-motor driveIn this article, let's check where exactly the electric drives are used and what are benefits and drawbacks of using electric drives.Advantages of Electric DriveThe advantages of using electric drives are listed below −Electric drives are environment friendly as they do not produce smoke, fumes, ash, etc. Therefore, electric ... Read More

What is an Arc Lamp? – Working Principle, Advantages, and Applications

Manish Kumar Saini
Updated on 27-Apr-2022 13:07:14

3K+ Views

What is an Arc Lamp?An Arc Lamp is a type of electric lamp that produces light by creating an electric arc in the gap between two electrodes when the electric supply is connected to these electrodes. The first arc lamp was invented by Sir Humphry Davy in 1807.Working Principle of Arc LampIn an arc lamp, two electrodes touching each other are connected to a source of electricity so that an electric current flows through the electrodes, as shown in Figure-1.Now, if the two electrodes are separated a bit from each other, even then they carry an electric current and in ... Read More

What is Aluminium Anodizing? – Working Principle, Process

Manish Kumar Saini
Updated on 27-Apr-2022 13:03:35

2K+ Views

What is Anodizing?The process of deposition of an oxide film on a metal surface is known as anodizing. The anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal workpieces.Anodizing of AluminiumAluminium alloys are anodized for the following reasons −To increase the corrosion resistance.To increase the surface hardness.To allow coloring or dyeing.To improve lubrication.To improve adhesion.When the pure aluminium is exposed to air at room temperature or any other gas containing oxygen, it self-passivates by forming a surface layer of amorphous aluminium oxide of thickness of 2 to 3 ... Read More

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