Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
12th Class Physics
Short Questions Preparation
Start Chapter 18 Preparation
12th Class Physics Chapter Wise Preparation
Online Short Questions For Chapter 7 "ICS Part 2 Physics Chapter 18 Short Questions Preparation "
Try The Short Questions For ICS Part 2 Physics Chapter 18 Short Questions Preparation
-
Total Questions10
-
Available Sets3
Physics - ICS Part 2 Physics Chapter 18 Short Questions Preparation
Question # 1
Differentiate between the forward biased and the reserve biase.
- Ans 1: When p side is positive and n-side is negative,the diode is forward biased.The width of depletion region reduces to which more current is allowed to flow across the junction.The forward resistance is few ohms.
- Ans 2: When p side is negative and n side is positive,the diode is reserved biased.The width of depletion region is increased and a very small current flows across the junction due to flow of minority charges carriers,The resistance offered by the diode is several mega ohms.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 1
Question # 1
Differentiate between the forward biased and the reserve biase.
- Ans 1: When p side is positive and n-side is negative,the diode is forward biased.The width of depletion region reduces to which more current is allowed to flow across the junction.The forward resistance is few ohms.
- Ans 2: When p side is negative and n side is positive,the diode is reserved biased.The width of depletion region is increased and a very small current flows across the junction due to flow of minority charges carriers,The resistance offered by the diode is several mega ohms.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 2
Question # 1
How the current flows in forward and reverse biased diode?
-
Ans 1: In forward biasing,the external potential difference supplies energy to free electrons in n-region and holes in p-region to overcome the potential barrier,a current of the orderof a few milli-amperes begins to flow across the pn junction.In reverse biasing ,no current flow due to the majority charge carrier,However a very small current of the order of of few micro amperes flow across the junction due to minority charge carriers.It is also known as reverse current or leakage current.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 3
Question # 1
Define Depletion region?
- Ans 1: A region in a semiconductor device,usually at the junction of p-type and n-type materials ,in which there is neither an excess of electrons nor of holes is called depletion region,It charge less region.
