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Test: Electromagnetic Field Theory - 8 - Electronics and Communication Engineering (ECE) MCQ


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25 Questions MCQ Test - Test: Electromagnetic Field Theory - 8

Test: Electromagnetic Field Theory - 8 for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Test: Electromagnetic Field Theory - 8 questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Electromagnetic Field Theory - 8 MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Electromagnetic Field Theory - 8 below.
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Test: Electromagnetic Field Theory - 8 - Question 1

Television receiver antenna is usually

Test: Electromagnetic Field Theory - 8 - Question 2

In figure the current distribution is represented by

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Test: Electromagnetic Field Theory - 8 - Question 3

Half power point directions for broadside is

Test: Electromagnetic Field Theory - 8 - Question 4

What will happen to a bird sitting on a conductor?

Test: Electromagnetic Field Theory - 8 - Question 5

Which one is correct option?

Test: Electromagnetic Field Theory - 8 - Question 6

Given that , if the radiation intensity of an antenna is proportional to sin2 θ, where θ is the elevation angle, the antenna directivity will be

Test: Electromagnetic Field Theory - 8 - Question 7

The term critical frequency denotes

Test: Electromagnetic Field Theory - 8 - Question 8

The important postulate arising out of Maxwell's modification of Ampere's law is

Test: Electromagnetic Field Theory - 8 - Question 9

Which of the following is not a wideband antenna?

Test: Electromagnetic Field Theory - 8 - Question 10

The polarization phenomena in Faraday rotation

Test: Electromagnetic Field Theory - 8 - Question 11

The portion of the atmosphere closest to ground is called ionosphere.

Test: Electromagnetic Field Theory - 8 - Question 12

Which of the following relations is valid for a spherical surface?

Test: Electromagnetic Field Theory - 8 - Question 13

When there is rapid attenuation of field inside the conductor, the field current are concentrated close to the surface of the conductor; this phenomenon is called

Test: Electromagnetic Field Theory - 8 - Question 14

Which antenna is frequently used for local area transmission at UHF/VHF?

Test: Electromagnetic Field Theory - 8 - Question 15

The work done in moving a charge Q on an equipotential line for a distance d will be

Test: Electromagnetic Field Theory - 8 - Question 16

For frequency up to 1650 kHz, the transmitting antenna is used a

Test: Electromagnetic Field Theory - 8 - Question 17

Radar antennas are

Test: Electromagnetic Field Theory - 8 - Question 18

Which of the following is high frequency transmission line?

Test: Electromagnetic Field Theory - 8 - Question 19

Which of the following are the properties of a medium?

Test: Electromagnetic Field Theory - 8 - Question 20

In microwave communication, some times, microwave signals reach large distances by following the earth curvature. This phenomenon is called

Test: Electromagnetic Field Theory - 8 - Question 21

An antenna is synonymous to a

Test: Electromagnetic Field Theory - 8 - Question 22

Alternating current can induce voltage because it has magnetic field which is

Test: Electromagnetic Field Theory - 8 - Question 23

Which of the following frequencies cannot be used for reliable beyond-the-horizon terrestrial communications without repeaters?

Test: Electromagnetic Field Theory - 8 - Question 24

Maximum effective aperture (Ae)max of short dipole antenna is

Test: Electromagnetic Field Theory - 8 - Question 25

Beamwidth of an antenna depends upon

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