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

View solution

Q. An antenna is synonymous to a

View solution

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

View solution

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

View solution

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

View solution

Q. Beamwidth of an antenna depends upon

View solution

Q. The term critical frequency denotes

View solution

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

View solution

Q. Which of the following is not a wideband antenna?

View solution

Q. The polarization phenomena in Faraday rotation

View solution

Q. The "boundary sphere" between antenna region and free space region appears to "opaque"

View solution

Q. In a horizontal polarized wave

View solution

Q. For a uniform plane wave of frequency 10⁶ Hz propagating in a good conductor, the field undergoes a change in phase by 2π radius over a distance of 1 meter. The field is attenuated by a factor of 1/e at a distance of

View solution

Q. T.V. broadcasting based on

View solution

Q. Absolute permeability (μ) is given by __________ henry/metre

View solution

Q. In a rectangular waveguide ZTE . ZTM is

View solution

Q. Brewster angle is the angle for which there is

View solution

Q. Surface waves can propagate on Piezoelectric substrates.

View solution

Q. For an antenna radiation and induction fields are

View solution

Q. A folded dipole antenna is conveniently connected to

View solution