August 2021 - Engineer Simple

August 2021

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Filter Circuits
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Filter Circuits

Filter Circuits   Generally, a rectifier is required to produce pure d.c. supply for using at various places in the electronic circuits. How...

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ripple factor formula
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ripple factor formula

Ripple Factor   The output of a rectifier consists of a d.c. component and as a.c. component (also known as ripple). The a.c. component is u...

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Semiconductor Diode
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Semiconductor Diode

Semiconductor Diode   A pn junction is known as a semi-conductor or *crystal diode. The outstanding property of a crystal diode to conduct c...

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Properties of pn Junction
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Properties of pn Junction

Properties of pn Junction   At the instant of pn-junction formation, the free electrons near the junctions near the junction in the n region...

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what is pn junction
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what is pn junction

pn Junction   When a p-type semiconductor is suitably joined to n-type semiconductor, the contact surface is called pn junction. Most semico...

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n type semiconductor definition
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n type semiconductor definition

n type semiconductor definition   n-type Semiconductor When a small amount of pentavalent impurity is added to a pure semiconductor, it is k...

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Intrinsic semiconductor and Extrinsic semiconductor
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Intrinsic semiconductor and Extrinsic semiconductor

Intrinsic semiconductor and Extrinsic semiconductor   Intrinsic Semiconductor A semiconductor in an extremely pure form is known as an intri...

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City Life

City Life

City life-its nature-rich people's liking to live in city-poor people also come-city dwellers enjoy living here-many problems-comforts f...

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A Classroom

A Classroom

A Classroom   What is a classroom? W here is your classroom? What is the size of your classroom? How many pieces of furniture are there? How...

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A Village Market Paragraph
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A Village Market Paragraph

A village market is an important place to the villagers. It is a marketplace in a village, where the villagers go to buy and sell various th...

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basics of semiconductor
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basics of semiconductor

Basics of semiconductor   It is not easy to define a semiconductor if we want to take into account all its physical characteristics. However...

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About Silicon
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About Silicon

Silicon   During the infancy of electronic industry, both germanium and silicon were used in the manufacture of semiconductor devices. As th...

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Energy Bands
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Energy Bands

Energy Bands   In case of a single isolated atom, the electrons in any orbit possess definite energy. However, an atom in a solid is greatly...

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Bohr’s Atomic Model
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Bohr’s Atomic Model

Bohr’s Atomic Model   Bohr’s Atomic Model-In 1913, Neils Bohr, Danish Physicist gave clear explanation of atomic structure. According to Boh...

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Gas-Filled Tube
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Gas-Filled Tube

Gas-Filled Tube     A gas-filled tube is essentially a vacuum tube having a small amount of some inert gas at low pressure. The gas pressure...

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Photo Electric Emission
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Photo Electric Emission

Photo Electric Emission   Electron emission from a metallic surface by the application of light is known as photo electric emission. When a ...

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Field Emission & Secondary Emission
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Field Emission & Secondary Emission

Field Emission   The process of electron emission by the application of strong electric field at the surface of a metal is known as field em...

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Thermionic Emission
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Thermionic Emission

Thermionic Emission   The process of electron emission from a metal surface by supplying thermal energy to it is known as thermionic emissio...

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Types of Electron Emission
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Types of Electron Emission

Types of Electron Emission   The electron emission from the surface of a metal is possible only if sufficient additional energy (equal to th...

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