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Electronics

Bipolar junction transistor(BJT):Applications & characteristics

What is transistor? A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.Or A transistor is a device that regulates current or voltage flow and acts as a switch or gate for electronic signals. Transistors consist of three layers of a semiconductor material, each capable of carrying a current. Bipolar Junction Transistor the basic ...

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Kirchhoff’s voltage law and current law with examples and applications

What is Kirchhoff’s Voltage Law? Kirchhoff’s voltage law is a fundamental circuit law that states that the algebraic sum of all the voltages around a closed path is zero or, in other words,the sum of the voltage drops equals the total source voltage. Kirchhoff’s loop rule In an electric circuit, the voltages across the resistors(voltage drops) always have polarities opposite ...

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Wheatstone bridge circuit with formula and applications

What is  wheatstone Bridge? The Wheatstone bridge circuit is widely used to precisely measure resistance. Also, the bridge is used in conjunction with transducers to measure physical quantities such as strain,temperature , and pressure. Transducers are devices that sense a change in a physical parameter and convert that change into an electrical quantity such as a change in resistance. For example, ...

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How to use Zener diode as voltage regulator

what is Zener Diode? A major application for zener diodes is as a type of voltage regulator for providing stable reference voltages for use in power supplies,voltmeters,and other instruments. In this section, you will see how the zener maintains a nearly constant de voltage under the proper operating conditions. You will learn the conditions and illustrations for properly using the ...

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applications and uses of diodes in everyday life

What is a semiconductor diode? A diode is a two-terminal device formed by two doped regions of silicon separated by a pn junction. The most common category of diode, known as the general-purpose diode,is covered. Other names, such as rectifier diode or signal diode, depend on the particular type of application for which the diode was designed. You will learn ...

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Difference between amplitude modulation and frequency modulation

What is modulation? Until the process of superimposing a low frequency (long wave) voice information component on a high frequency (short wave) carrier signal was perfected,the most widely used form of communication was a system based on the transmission of a continuous wave (CW) signal.With this system,the signal was interrupted periodically (Morse code) to produce a coded message.The CW system ...

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Different types of rectifiers and their applications in daily life

What is Rectification? Conversion of alternating current into direct current is called rectification. Semiconductor diodes are extensively used for this purpose. Types of rectifier There are three common types of rectification: Half wave rectification Full wave rectification Full Wave Bridge Rectification Voltage multipliers rectification Half Wave Rectification An alternating voltage of Time period T is called input voltage is applied ...

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Difference between donor and acceptor impurities in semiconductor

What is Doping ? The conductivity of intrinsic semiconductor is not so good to use them for making electronic devices. To increase the conductivity of intrinsic semiconductor, some impurities are added. This process of adding impurities of intrinsic semiconductor is called doping. The doping is of two types: Accepter Doping Donor Doping Accepter Doping If the trivalent element from the ...

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Difference between intrinsic and extrinsic semiconductor

In terms of their electrical properties,materials can be classified into three groups: Conductors Insulators Semiconductors When atoms combine to form a solid,crystalline materials,they arrange themselves in symmetrical pattern.The atoms within crystal structure are held together by covalent bonds,which are created by the interaction of the valence electrons of the atoms. Silicon is a crystalline material.All materials are made up of ...

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What are the different types of solids?

What are Solids? Material have specific used depending upon their characteristics and properties, such as hardness, ductility,malleability, conducting or magnetic etc. What makes steel hard, lead soft, iron magnetic and copper electrically conducting? It depends upon the structure- the particular order and bonding of atoms in a material. this clue has made it possible to design and create materials with ...

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