Download PTU Physics Assignment 1_1 Question Bank

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Physics Assignment No. 1 Date of Submission: 19.08.2019

Class: EE A, ME A, ME B

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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?

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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.

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