Deemed University 2009 A.M.I.E.T.E Electronics & Communication Engineering Electromagnetics and radiation – et (old scheme) - Question Paper

AMIETE – ET (OLD SCHEME)

Code: AE14 Subject: ELECTROMAGNETICS AND RADIATION
Time: three Hours Max. Marks: 100

NOTE: There are nine ques. in all.
· ques. one is compulsory and carries 20 marks. ans to Q. 1. must be written in the space given for it in the ans book supplied and nowhere else.
· Out of the remaining 8 ques. ans any 5 ques.. every ques. carries 16 marks.
· Any needed data not explicitly given, may be suitably presumed and said.


Q.1 select the accurate or the best option in the following: (210)

a. The unit of electric field strength is

(A) Volts/meter. (B) Newton/coulomb.
(C) Joules/coulomb meter. (D) All.

b. Which of the subsequent is a ferromagnetic material?

(A) Copper (B) Palladium
(C) Silver (D) Cobalt

c. The magnetic flux emerging from any closed surface is

(A) Constant. (B) Zero.
(C) Unity. (D) None.

d. Maxwells formula in free space is

(A) . (B) .
(C) . (D) .

e. 2 waves of identical frequency have opposite phases, when the phase angle ranging from them is

(A) 0?. (B) 90?.
(C) 360?. (D) p radian.

f. Poynting vector for an electromagnetic wave is equal to

(A) . (B) .
(C) . (D) .

g. An electromagnetic wave incident on a perfect dielectric is
(A) Fully transmitted.
(B) Fully reflected.
(C) Partially transmitted and partially reflected.
(D) None of these.


h. Polarization of electromagnetic waves is due to

Earning:   Approval pending.