Frequency Independent Antenna - Helical Antenna Online Exam Quiz
Frequency Independent Antenna - Helical Antenna GK Quiz. Question and Answers related to Frequency Independent Antenna - Helical Antenna. MCQ (Multiple Choice Questions with answers about Frequency Independent Antenna - Helical Antenna
Find the number of turns in the helical antenna with directivity 120 and C?=1 and pitch angle 6?.
Options
A : 100
B : 50
C : 120
D : 12
Gauss for the Electric Field is given by __
Options
A : ?.D=0
B : ??D=?v
C : ??D=0
D : ?.D=?v
Gauss for the Magnetic Field is given by __
Options
A : ?.B=0
B : ??B=?v
C : ??B=0
D : ?.B=?v
The Axial ratio of the helical antenna with 3 turns is ___
Options
A : 1.11
B : 0.89
C : 6
D : 0.98
The Maxwell equation ??E=\frac{-\partial B}{\partial t} is derived from which law?
Options
A : Amperes law
B : Faradays Law
C : Lens law
D : Gauss law
The minus sign in the Faradays law of induction is given by __
Options
A : Lens Law
B : Gauss law
C : Amperes Law
D : Gauss law
What is the Input impedance of the axial feed helical antenna with circumference per unit wavelength is 1.2?
Options
A : 168?
B : 186?
C : 198?
D : 158?
What is the total axial length of the helical antenna with 5 turns and circumference per wavelength is 1.2 and separation between turns is 2 cm?
Options
A : 10cm
B : 20cm
C : 6cm
D : 12cm
Which of the following Maxwell equation is obtained from Amperes law?
Options
A : ??H=J
B : emf=-\frac{\partial \phi}{\partial t}
C : ??E=\frac{-\partial B}{\partial t}
D : ??D=?v
Which of the following type does helical antenna belongs to?
Options
A : Wire type
B : Aperture
C : Reflector
D : Array
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