Isotropic Radiators Online Exam Quiz
Isotropic Radiators GK Quiz. Question and Answers related to Isotropic Radiators. MCQ (Multiple Choice Questions with answers about Isotropic Radiators
The radiation efficiency value is __
Options
A : 0
B : 1<?<?
C : 0???1
D : ?
The ratio of power radiated in a particular direction to the total input power of antenna is called as ___
Options
A : Directive gain
B : Power gain
C : Directivity
D : Partial directivity
The value of maximum power gain is always greater than or equal to the maximum directive gain.
Options
A : TRUE
B : FALSE
C : -
D : -
What is the maximum power gain of antenna with radiation efficiency 98% and directive gain 1?
Options
A : 0.98
B : 1.02
C : 1.98
D : 1
What is the maximum power gain when the radiation resistance is 72?, loss resistance is 8? and the maximum directive gain is 1.5?
Options
A : 1.15
B : 1.35
C : 1.25
D : 1.53
Which of the following expression is correct for radiation efficiency?
Options
A : \eta_r = \frac{P_r}{P_l}
B : \eta_r = \frac{P_r}{P_r-P_l}
C : \eta_r = \frac{P_r}{P_r+P_l}
D : \eta_r = \frac{P_l}{P_r+P_l}
Which of the following represents the relation between maximum power gain and maximum directivity gain of the antenna?
Options
A : Gpmax = ?rGdmax
B : Gpmax = ?r/Gdmax
C : ?r = \sqrt{(G_{pmax} G_{dmax})}
D : ?r = \frac{G_{dmax}+G_{pmax}}{G_{dmax}-G_{pmax}}