Download CBSE Class 12 Physics Electronic Devices Notes Set B in PDF format. All Revision notes for Class 12 Physics have been designed as per the latest syllabus and updated chapters given in your textbook for Physics in Class 12. Our teachers have designed these concept notes for the benefit of Class 12 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 12 Physics for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 12 Physics given on studiestoday
Revision Notes for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits
Class 12 Physics students should refer to the following concepts and notes for Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits in Class 12. These exam notes for Class 12 Physics will be very useful for upcoming class tests and examinations and help you to score good marks
Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits Notes Class 12 Physics
9. ELECTRONIC DEVICES
GIST
1. In metals, the conduction band and valence band partly overlap each other and there is no forbidden energy gap.
2. In insulators, the conduction band is empty and valence band is completely filled and forbidden gap is quite large = 6 eV. No electron from valence band can cross over to conduction band at room temperature, even if electric field is applied. Hence there is no conductivity of the insulators.
3. In semiconductors, the conduction band is empty and valence band is totally filled. But the forbidden gap between conduction band and valence band is quite small, which is about 1 eV. No electron from valence band can cross over to conduction band. Therefore, the semiconductor behaves as insulator. At room temperature, some electrons in the valence band acquire thermal energy, greater than energy gap of 1 eV and jump over to the conduction band where they are free to move under the influence of even a small electric field. Due
P-n junction diode
Two important processes occur during the formation of p-n junction diffusion and drift. The motion of majority charge carriers give rise to diffusion current.
Due to the space charge on n-side junction and negative space charge region on p-side the electric field is set up and potential barrier develops at the junction electric field e- on p-side moves to n and holes from n-side to p-side which is called drift current.
In equilibrium state, there is no current across p-n junction and potential barrier across p-n junction has maximum value.
The width of the depletion region and magnitude of barrier potential depends on the nature of semiconductor and doping concentration on two sides of p-n junction.
Forward Bias
P-n junction is FB when p-type connected to the +ve of battery and n-type connected to –ve battery Potential barrier is reduced and width of depletion layer decreases.
Reverse Bias
P-n junction in RB p-type connected to the –ve battery and n-type connected to +ve Resistance of p-n junction is high to the flow of current.
Please refer to the link below for CBSE Class 12 Physics Notes - Electronic Devices
| CBSE Class 12 Physics Alternating Current Notes Set A |
| CBSE Class 12 Physics Alternating Current Notes Set B |
| CBSE Class 12 Physics Wave Optics Notes Set A |
| CBSE Class 12 Physics Wave Optics Notes Set B |
CBSE Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits Notes
We hope you liked the above notes for topic Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits which has been designed as per the latest syllabus for Class 12 Physics released by CBSE. Students of Class 12 should download and practice the above notes for Class 12 Physics regularly. All revision notes have been designed for Physics by referring to the most important topics which the students should learn to get better marks in examinations. Studiestoday is the best website for Class 12 students to download all latest study material.
Notes for Physics CBSE Class 12 Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits
Our team of expert teachers have referred to the NCERT book for Class 12 Physics to design the Physics Class 12 notes. If you read the concepts and revision notes for one chapter daily, students will get higher marks in Class 12 exams this year. Daily revision of Physics course notes and related study material will help you to have a better understanding of all concepts and also clear all your doubts. You can download all Revision notes for Class 12 Physics also from www.studiestoday.com absolutely free of cost in Pdf format. After reading the notes which have been developed as per the latest books also refer to the NCERT solutions for Class 12 Physics provided by our teachers
Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits Notes for Physics CBSE Class 12
All revision class notes given above for Class 12 Physics have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the notes of Physics so that you are able to revise the entire syllabus if you download and read them carefully. We have also provided a lot of MCQ questions for Class 12 Physics in the notes so that you can learn the concepts and also solve questions relating to the topics. All study material for Class 12 Physics students have been given on studiestoday.
Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits CBSE Class 12 Physics Notes
Regular notes reading helps to build a more comprehensive understanding of Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits concepts. notes play a crucial role in understanding Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits in CBSE Class 12. Students can download all the notes, worksheets, assignments, and practice papers of the same chapter in Class 12 Physics in Pdf format. You can print them or read them online on your computer or mobile.
Notes for CBSE Physics Class 12 Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits
CBSE Class 12 Physics latest books have been used for writing the above notes. If you have exams then you should revise all concepts relating to Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits by taking out a print and keeping them with you. We have also provided a lot of Worksheets for Class 12 Physics which you can use to further make yourself stronger in Physics
You can download notes for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits for latest academic session from StudiesToday.com
Yes, the notes issued for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits have been made available here for latest CBSE session
There is no charge for the notes for CBSE Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits, you can download everything free of charge
www.studiestoday.com is the best website from which you can download latest notes for Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits Physics Class 12
Come to StudiesToday.com to get best quality topic wise notes for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits