Download AKTU B-Tech 7th Sem 2015-2016 EEN 701EEE 504 Electrical Instrumentation Process Control Question Paper

Code: 13A05305

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

B. Tech II Year I Semester Examinations, November/December - 2016

ELECTROMAGNETIC THEORY AND TRANSMISSION LINES

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(Electrical and Electronics Engineering)

Time: 3 Hours Max. Marks: 75

Note: This question paper contains two parts A and B.

Part A is compulsory which carries 25 marks. Answer all questions in Part A.

Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.

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PART - A (25 Marks)

1. 1. State Coulomb's Law. (2 Marks)
   2. Define Electric potential. (3 Marks)
   3. State Ampere's Circuital Law. (2 Marks)
   4. Define magnetic dipole moment. (3 Marks)
   5. Define displacement current. (2 Marks)

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   6. Define intrinsic impedance. (3 Marks)
   7. Define Standing Wave Ratio. (2 Marks)
   8. Define lossless line. (3 Marks)
   9. Define attenuation constant. (2 Marks)
   10. What are the applications of smith chart? (3 Marks)

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PART - B (50 Marks)

2. Explain different types of charge distributions.

   OR

   Derive the expression for potential due to charged ring.

   (10 Marks)

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3. Derive the expression for magnetic field intensity due to straight current carrying filament.

   OR

   Derive the expression for the force between two current carrying conductors.

   (10 Marks)

4. What are Maxwell's Equations for time varying fields? Explain the significance of displacement current.

   OR

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   Define Poynting theorem and derive the expression for poynting vector.

   (10 Marks)

5. Derive the transmission line equations.

   OR

   Explain about reflection coefficient and VSWR.

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   (10 Marks)

6. Explain single stub matching with neat diagrams.

   OR

   Explain about quarter wave transformer with neat diagrams.

   (10 Marks)

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