University Questions with Answers (Long Answered Questions)

University Questions with Answers

(Long Answered Questions)

(Regulation 2013)

Dec.-14

Q.1 Describe the concept of electromagnetic wave propagation in a linear, isotropic, homogeneous, lossy dielectric medium. (Refer section 10.6) [16]

Q.2 Show that the total power flow along a coaxial cable will be given by the surface integration of the poynting vector over any closed surface. (Refer section 10.8)   [12]

Q.3 Briefly explain about wave incident normally on perfect conductor. (Refer section 10.10) [8]

Q.4 Write a note on standing wave ratio. (Refer section 10.10)         [8]

Q.5 Briefly explain about the wave incident obliquely to the surface of perfect conductor. (Refer section 10.11)       [8]

May-16

Q.6 Deduce the wave equations for conducting medium. (Refer section 10.2)       [8]

Q.7 Discuss group velocity, phase velocity and propagation constant of electromagnetic waves. (Refer section 10.3)        [8]

Q.8 Deduce the expression for fields of a plane electromagnetic waves which are incident normally on the surface of a perfect dielectric medium. (Refer section 10.10.1)     [10]

Q.9 Write short note on standing waves. (Refer section 10.10.2.1)    [6]

Dec.-16

Q.10 Derive the expression for electromagnetic wave equation for conducting and perfect dielectric medium. (Refer sections 10.5 and 10.7) [13]

May-17

Q.11 Derive the electromagnetic wave equations in free space and mention the types of solutions. (Refer section 10.3)        [10]

Q.12 State and prove Poynting's theorem and derive the expression for average power. (Refer section 10.8)         [12]

Dec.-17

Q.13 Derive general wave equations for E and H fields using Maxwell's equations. (Refer section 10.2)         [8]

Q.14 Explain in detail the behaviour of plane waves in lossless medium. (Refer section 10.5)  [8]

Q.15 Define and derive Poynting vector. Mention its practical significance. (Refer section 10.8)          [8]

Q.16 Write a note on standing wave ratio. (Refer section 10.10)       [6]

May-18

Q.17 Derive the Poynting theorem and state its significance. (Refer section 10.8) [7]

Q.18 Write short notes on the following :    [4+4+5]

i) Plane waves in lossless dielectrics.

(Refer section 10.5)

ii) Plane waves in free space.

(Refer section 10.3)

iii) Plane waves in good conductors.

(Refer section 10.7)

(Regulation 2017)

Dec.-18

Q.19 Define wave. Derive the wave equation in terms of electric and magnetic fields for a conducting medium. (Refer sections 10.1 and 10.2)       [13]

May-19

Q.20 Explain in detail the behavior of plane waves in lossless medium. (Refer section 10.5)          [13]

Q.21 Starting from Maxwells equations derive the expression for Poynting vector and explain its significance. (Refer section 10.8)       [13]

Dec.-19

Q.22 A charge q is moving with a uniform velocity v . Obtain its Poynting vector and show that the energy propagates along with the moving charge. (Refer section 10.8) [13]

Q.23 Discuss the propagation of electromagnetic wave at the interface between two dielectric media. (Refer section 10.10)    [13]