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Engineering Physics II PH6251 MJ2014 2nd Semester Question Paper

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Anna University Question Paper Code : 57035 
B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2014. 
Second Semester 
Civil Engineering 
PH 6251 — ENGINEERING PHYSICS —II 
(Common to all branches except Biotechnology and-Plarmaceutical Technology) 
(Regulation 2013) 

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PART A -I (10 x 2 =20 marks) 

1. Define drift velocity.
2. What are the sources of resistance in metals?
3. State the properties of a semiconductor.
4. What is meant by the law of mass action in semiconductor.
5: Give Curie-Weiss law and its importance.
6. What is meant by hysteresis loop and what do you infer from it?
7. What are dielectric materials? Give their properties.
8. Distinguish Lorentz force and Coulomb force in dielectrics.
9. What do you understand by the term quenching?
10. List out the various forms of carbon nano tubes.



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