Download PTU Physics Assignment 1_1 Question Bank

FirstRanker's choice: FirstRanker.com

Physics Assignment No. 1 Date of Submission: 19.08.2019

Class: EE A, ME A, ME B

--- Content provided by⁠ FirstRanker.com ---

Teacher Incharge: Harpreet Kaur Grewal, Randhir Singh

Chapter: Semiconductors

1. Differentiate conductor and insulator.
2. What is semiconductor? How its resistivity varies with temperature? How many types of semiconductors are there? Explain briefly.
3. What is diode?

--- Content provided by‌ FirstRanker.com ---

4. What is forward bias and reverse bias?
5. What are majority and minority carriers?
6. Define diffusion current and drift current.
7. What is Fermi level and Fermi energy?
8. Explain the working of p-n diode.

--- Content provided by​ FirstRanker.com ---

9. What is transistor?
10. Explain briefly solar cell and LED by giving their respective working principle and working.