Electromagnetic Field Theory Objective Questions and Answers Pdf - 3

Question: 11

A cavity is a

(A) band pass filter

(B) band stop filter

(C) band stop filter

(D) high pass filter

Question: 12

The input impedance of short circuited lossless line of length less than a quarter wavelength is

(A) complex

(B) purely capacitive

(C) purely inductive

(D) purely resistive

Question: 13

Distortion in the transmission of carrier frequencies in an underground cable can be eliminated by using

(A) shielding

(B) capacitive loading

(C) resistive loading

(D) inductive loading

Question: 14

Maxwell's major contribution to EM theory was to assert

(A) that energy density due to an electric field

(B) that a magnetic field varying with space gives rise to an electric field

(C) that a magnetic field varying with time gives rises to an electric field

(D) that an electric field varying with time in free space gives rise to a current

Question: 15

Method of images is applicable to which fields?

(A) electrodynamics fields only

(B) electrostatic fields only

(C) neither electrostatic fields nor electrodynamic fields

(D) both electrostatic fields and electrodynamic fields