Class 12 Physics Ch 14

Semiconductor Electronics, Materials and Sample Circuits Ch 14 Notes

CBSE Class 12th Physics Chapter 14 Revision Notes
 Class 12th Physics Ncert Based Solutions 
The fourteenth chapter of Semiconductor Electronic: Material, Devices And Simple Circuits presents an introduction to a diverse range of materials beyond metals and non-metals, specifically focusing on semiconductor materials. This chapter serves as a valuable resource for class 12th students, providing a comprehensive understanding of the role of these materials in modern-day technologies utilized in electronic devices.

In addition to discussing the properties of semiconductor materials, this chapter delves into the fundamental concepts of semiconductor physics. It also explores various devices such as junction diodes and bipolar junction transistors, among others. As a result, semiconductors class 12 notes offer students a comprehensive understanding of the different types of semiconductors and their applications.

Furthermore, this chapter provides students with a detailed explanation of the application of junction diodes as rectifiers. Overall, the chapter serves as an essential resource for students seeking to expand their knowledge of semiconductor materials and their role in modern-day electronics.,
Semiconductor Electronics, Materials and Sample Circuits  CBSE Class XII Physics NCERT Based Solutions 

The NCERT Results for Class 12 Physics Notes are based on the most recent CBSE Syllabus 2023-24 and its marking systems. Physics Class 12 NCERT PDF is simple to Easy to Understand while preparing notes and taking exams. Class 12 physics Chapter Wise Notes can be downloaded for free or at no cost from the link provided below. 

Chapter 14. Semiconductor Electronics: Materials, Devices And Simple Circuits

It is a branch of science that deals with the flow of electricity through a vacuum, gas or semiconductor.

  Classification of materials based on electrical conductivity.
  We know that every substance consists of atoms.  The materials are mainly classified into solids, and gases into three categories.
  Each solid atom is in a specific position and the average distance between them is fixed.  Solids are also divided into two groups depending on the internal structure of the atom.
  Crystalline solids

  Solids in which the atoms are arranged in a regular order are called crystalline solids.  In other words, we can say this in a crystalline line.  In all respects, its constituent atoms are uniform and uniform, for example crystalline solids such as sodium chloride (common salt), diamond, sugar, silver etc.  I manage.
  Their atoms are arranged in a specific geometric form.
  They have a certain melting point.
  They differ in different aspects such as anisotropic, that is, their physical properties such as thermal conductivity, refractive index, etc.
  They are real solids.
  2. No shape

  Solids that do not have a specific arrangement of atoms are called volatile solids.  These are also called vitreous solids.  For example glass, rubber, plastic and energy are shapeless materials.
  Tbey atoms do not have a specific arrangement, for example, they have no distinctive geometric shape.
  They have no fixed melting point.
  They are anisotropic  That is, their physical properties, such as conductivity of heat-resistant indicators, etc., are all in one eye.
  These are not real solids.
  Mono crystalline and poly crystalline

  Mono crystalline is a crystal in which the arrangement of the arrangement of atoms or molecules expands into solid parts regardless of size.
  Poly crystalline is a crystalline solid in which each piece of energy contains a number of mono crystals that bind developing faces together.
  Poly crystalline ceramics made with PBO, ZNO and TIO are used in gas lighters and telephone receivers.
  Liquid crystals

  Some organic crystals are solid.  When heat acquires fluidity, it retains its anisotropic properties.  Liquid crystals are called ax.
  Some liquid crystals, such as phenomenal, can change the level of light polarization, and these LCD screens are used in watches and precision calculators.
  Crystal lattice

  The crystal consists of a three-dimensional arrangement so that each point surrounds the boring height points in a uniform way.  Arrays of these points are known as the bravo mesh or the space network.
  A unit cell is the smallest unit of a crystal network, and its duplication leads to the appearance of a three-dimensional crystal network.
  The length of the three sides of the primitive unit cell is called the latex constant, represented by A, B, and C. The angles between the three crystal axes are called the angles, and the interfacial angles represent β and ম γ the primitive angles and the interface form a unit.
  [It can be a crystalline cubic shape, a simple cubic (SC) reticular cubic, a body centere cubic reticle (bee hair), a facial centere cubic (FCC) reticulated.]]
  The coordinate number is used as the number of the closest neighbors near any network point (or atom) in the crystal grid.
  (A) For SC, the adjustment number is 6.
  (B) The number of modifications to bees is 8.
  (C) For FCC, the amendment number is 12.
  (D) For SC, the atomic radius is a / 2.
  (E) For CC, the atom is √3 / 4.
  (F) for the FCC.  Atomic radius a / 2-2.
  Classification of solids based on conductivity

  (I) conductor

  A conductor is a material through which electricity can pass easily, for example, all metal conductors.
  (Ii) insulator

  Insulator is a material that cannot conduct electricity, such as wood.  Rubber, mica, etc.

  Semiconductors are materials that have a conductivity between conductors and dielectrics.  Like germs 
Solid power suits

 1. Power series

 Due to the interaction between the atoms in a crystal, valence electrons of one atom have more than one atom in the crystal.  Now the energy levels are broken.  The convergence of these energy levels is called the energy series.
 2. The Valence Squad

 This energy series contains valence electrons.  This range can be partially or completely filled with electrons, but should never be empty.  The electrons in this range are unable to obtain energy from the external electric field to conduct the current.
 3. Scope of delivery

 This strip contains conductive electrons.  This series is either empty or partially filled with electrons.
 The electrons in this band are involved in conducting current.
 4. Forbidden orchestra

Important Class 12 Physics Revision Notes PDF Free download 

Class 12 Physics Chapter 14 Semiconductor Electronics, Materials and Sample Circuits   is an important study material for the Students who are presently studying in CBSE 12th standard. The NCERT Results for Class XIIth PHYSICS Solutions,  

The PW PhysicsWallah offers free PDF downloads of Class 12 Physics Chapter 14  Semiconductor Electronics, Materials and Sample Circuits Notes. These latest chapter-wise notes are ideal for quick preparation of CBSE board exams and school-based annual examinations. Additionally, CBSE Guide website provides comprehensive notes covering the latest syllabus of CBSE and NCERT, including all topics given in NCERT class 12 Physics textbook. Users can download CBSE guide quick revision notes from both platforms to score high in exams.

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