Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
.jpg)
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
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 1
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 2
Question # 1
How is the XOR gate so called?
- Ans 1: One of its most commonly used applications is as a basic logic comparator which produce a logic "1" output when its two inputs bits are not equal.Because of the ,the XOR gate has an inequality status being known as an odd functions.
ICS Part 2 Physics Chapter 18 Short Questions Preparation - Set 3
Question # 1
Why charge carriers are not present in the depletion region?
- Ans 1: This is due to the fact when an electron from an n region diffuses into the p-region,it leaves behind a positive ion.When this electron recombines with the hole in the p-region,a negative ion is formed,So no charge carrier are available in this region,though it contains immobile positive and negative ions.
