Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Electronics and Communication Engineering
»
Electromagnetic Field Theory
A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls find cut off wavelength for dominant mode.
4 cm
1 cm
2 cm
8 cm
Correct Answer:
4 cm
Explanation:
.
← Previous Question
Next Question→
More Questions from
Electromagnetic Field Theory
A (75 - j 40) W load is connected to a co-axial line of z0 = 75ω at 6 MHz. The load matching on the line can be accomplished by connecting
The electric field of the incident wave is , where ω = 3 x 109p and β = 10 p. The electric field of the transmitted wave Et is given by
The electric field on the surface of a perfect conductor is 2V/m. The conductor is immersed in water with ε = 80 ε0. The surface charge density on the conductor is ((ε0 = 10-9/36p)F/m)
The phase angle corresponding to λ/4 in a standing-wave pattern is
Which one of the following potential does not satisfy Laplace's equations?
Most antenna consisting of a 50 meter long vertical conductor operates over a perfectly conducting ground plane. It is base fed at a frequency of 600 kHz. The radiation resistance of the antenna in ohms is
Consider a loss less antenna with a directive gain of + 6 dB. If 1 mW of power is fed to it the total power radiated by the antenna will be
Find the radiation resistance of an antenna of length λ/10 meter?
A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is
The radiation resistance of a λ/16 wire dipole in free space will be nearly
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments