PHYSICS

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    Physics important questions for mid 1

Shorts: 

1) Define heat ,work and second law of thermodynamics.

2)  Define entropy of a system  and first law of thermodynamics. 

3) Explain reversible and irreversible process.

4) Define electric flux and state Gauss’s law related to electric flux.

5) Explain Ampere's law and Faraday’s laws.

6) Define intensity of electric field and write expression for Biot-Savart’s law.

Essays:

1.(a) State and prove Gauss's law in electrostatics.

   (b) Find the intensity of electric field due to a uniformly charged cylinder (non conducting).

 2. Derive the expression for the efficiency of the Carnot’s engine. 

 3. Explain the Biot-Savart’s law and Derive the expression for B due to an infinite conducting wire of length (l).

 4). Explain hall effect, write the expression for hall coefficient, it’s importance and applications.

WELLFARE INSTITUTE OF SCIENCE TECHNOLOGY AND MANAGEMENT I/IV B.tech DEPARTMENT OF PHYSICS, BRANCH ECE,CSE,EEE,MECH,CIVIL

First Semester mid-I Examination 

Subject: Engineering Physics                                   Time: (90Min) Max Marks: 40

  Answer all the following questions 

         Part-A                                            (6X2 = 12M) 
1.a) Define heat, work and second law of thermodynamics.
   b) Define entropy of a system and first law of thermodynamics. 
  c) Explain reversible and irreversible process. 
  d) Define electric flux and state Gauss's law related to electric flux. 
 e) Explain Ampere's law and Faraday's laws. Define intensity of electric field and writ Savart's law.
       Part-B                                                     (2 × 14 = 28M) 
2. (a)State and prove Gauss's law in electrostatics. 
   (b) Find the intensity of electric field due to a uniformly charged cylinder (non- conducting).
 3.Derive the expression for the efficiency of the Carnot's engine. 
4.Explain the Biot-Savart's law and Derive the expression for B due to an infinite conducting wire of       length (I). 
5. Explain hall effect, write the expression for hall coefficient, it's importance and applications.

 

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