Q. What will happen to a bird sitting on a conductor?

View solution

Q. Which one is correct option?

View solution

Q. Short-circuited stubs are preferred to open circuited stubs because the latter are

View solution

Q. The induction field of short current element varies as

View solution

Q. In binomial arrays the elimination of secondary lobes takes place

View solution

Q. Q-factor of a transmission line at resonance is

View solution

Q. In a medium if ε, μ and σ are constant throughout the medium, then it is known as

View solution

Q. The directivity of 20 turn helix having α = 12° circumference equal to one wavelength, will be

View solution

Q. The velocity factor of a transmission line

View solution

Q. For TM waves in a parallel plate waveguide, the minimum attenuation arising from imperfect conductors would occur at a freq. of (fc is the cut off frequency)

View solution

Q. __________ acts as a depolarizer in a dry cell.

View solution

Q. Tropospheric mode of propagation is used in

View solution

Q. The skip distance is

View solution

Q. Polystyrene has a relative permittivity of 2.7. If the wave is incident at an angle θi of 30° from air into polystyrene, the angle of transmission will be nearly

View solution

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

View solution

Q. Radar antennas are

View solution

Q. Which of the following is high frequency transmission line?

View solution

Q. Which of the following are the properties of a medium?

View solution

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

View solution

Q. There is no radiation at right angles to the plane of the array, is end fire array.

View solution