71851. In end fire array the principle direction of radiation
71852. The gain of an half wavelength antenna is
71853. Which of the following does not characterize a ferromagnetic material?
71854. Solution of Laplace equations, which are continuous through the second derivative, are called
71855. The skip distance does not depends upon
71856. Which one of the following statement is correct?
71857. Frequency band used for radar is generally
71858. In case of antenna the lower value of Q indicates
71859. One volt equals
71860. Magnetic susceptibility of a medium is the ratio of
71861. In order to receive a vertically polarized wave, the conductor of the dipole should be mounted
71862. The ----------attack is related to confidentially
71863. Reflectors and lens antennas are commonly used
71864. In case of concentric conductors of radius a and b the value of capacitance (C) is given by
71865. In a uniform linear array, four isotropic radiating elements are spaced λ/4 apart. The progressive phase shift between the elements required for forming the main beam at 60° off the end fire is
71866. When a coil consisting of single turn rotates at a uniform speed in a magnetic field, the induced e.m.f. is
71867. Short-circuited stubs are used, because open-circuited stubs are
71868. Directivity and beamwidth is related as
71869. An arrangement of several individual antennas to spaced and phased that their individual contributions combine in one preferred direction and cancel in all other directions, to get greater directive gain or directivity, is known as
71870. The complex Poynting vector for electromagnetic wave.
71871. 300 to 3000 MHz frequency is categorized as
71872. The gain of an antenna with a circular aperture of diameter 3 metres at a frequency of 5 GHz, will be
71873. The gain of a current element is
71874. Poynting theorem relates the electric intensity E, magnetic intensity H to the rate of energy flow per unit area at a point P as
71875. The absorption of EM wave by the atmosphere depends on
71876. ∇2 is
71877. End fire array has narrow bandwidth.
71878. Which of the following antenna is best guided by a waveguide?
71879. Poynting vector is the rate of energy flow having
71880. Refraction of electromagnetic waves occurs when they
71881. The impedance inversion may be objected with
71882. The force acting on a charge q moving with velocity in a region of electric field and magnetic field is
71883. An electromagnetic wave incidents on a perfect insulator at an angle. If the wave is not entirely parallel polarized, then
71884. Coaxial cables can be used for which frequency?
71885. In order to receive a vertical polarized wave, the conductor of the dipole should be mounted
71886. VSWR can have any value between
71887. The input impedance for folded dipole antenna (two half dipole) is
71888. Capacitance hats are installed on low frequency antenna is
71889. A ship-to-ship communication system is plagued by fading. The best solution seems to be the use of
71890. Which one of the following is not a correct Maxwell equation?
71891. If a wave is propagated in free space, it will be in nature of
71892. The cryptography method in which the plaintext BBBB become the ciphertext BCDE.This is probably
71893. When the height of a vertical earthed antenna is less than λ/4
71894. The following service is not provided by digital signature
71895. Which of the following is a circularly polarized antenna?
71896. ----------is a technique of temporarily removing inactive programs from the memory of computer system
71897. Television signals are propagated as ground waves.
71898. Fence register is used for
71899. The current distribution along a travelling wave antenna can be written in the form
71900. The -------clause is used to list the attributes desired in the result of a query
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use
Powered By:Omega Web Solutions