Roll No.
Total No. of Questions: 18
Total No. of Pages : 02
--- Content provided by FirstRanker.com ---
B.Tech. (ECE) (Sem.-3)
ELECTROMAGNETIC WAVES
Subject Code: UC-BTEC-303-19
M.Code: 78748
Time: 3 Hrs.
Max. Marks : 60
--- Content provided by FirstRanker.com ---
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
SECTION-A
Write briefly :
--- Content provided by FirstRanker.com ---
- What do you understand by VSWR?
- Define Skin depth in a wave.
- What is the significance of S-parameters?
- Give the mathematical relationship between VSWR and Reflection coefficient.
- How can you define Total Internal Reflection?
- Name various Co-ordinate systems that can be used in Vector calculus.
- Define: Phase velocity and Group velocity in a electromagnetic wave giving their mathematical expressions.
- Give the significance of Poincare's Sphere.
- Give the types of Waveguides. List some applications of waveguides.
- What is Attenuation in Waveguides?
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
SECTION-B
- State and Prove Poynting Theorem.
- How can you describe the surface currents on the walls of a waveguide? Give field visualization for current distribution in a parallel plane waveguide.
- What are the major differences between Electromagnetic theory and Circuit Theory? List some applications of Electromagnetic theory.
- How can you represent a parallel plane Transmission line using an equivalent circuit?
- Discuss low loss radio frequency and UHF transmission lines.
--- Content provided by FirstRanker.com ---
SECTION-C
- Derive the Maxwell's wave equations for time-varying electromagnetic field in differential form as well as integral form.
- Discuss various propagation characteristics of EM waves in perfect conductors giving their mathematical expressions.
- Discuss Wave equation and its general solution in different media.
NOTE: Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
--- Content provided by FirstRanker.com ---
This download link is referred from the post: PTU B.Tech 2021 January Previous Question Papers || PTU Punjab Technical University
--- Content provided by FirstRanker.com ---