Q. The energy stored in a magnetic field is given by

View solution

Q. The characteristic impedance is given by

View solution

Q. The phase velocity in a transmission line is

View solution

Q. The length of a λ/2 antenna in feet is given by the relation

View solution

Q. The velocity of electromagnetic wave in free space is given by

View solution

Q. In case of concentric conductors of radius a and b the value of capacitance (C) is given by

View solution

Q. The complex Poynting vector for electromagnetic wave.

View solution

Q. Two LOS antennas having power gains of G1 and G2 are separated transmitted power, Pr is received power turn Pr/Pt will be proportional to

View solution

Q. The force acting on a charge q moving with velocity v̅ in a region of electric field E̅ and magnetic field B̅ is

View solution

Q. What is the characteristic impedance Z0 of a line having R, inductance L, capacitance C and conductance G?

View solution

Q. Which one of the following is not a correct Maxwell equation?

View solution

Q. The current distribution along a travelling wave antenna can be written in the form

View solution

Q. Divergence theorem relate surface integration with volume integration as

View solution

Q. In figure the current distribution is represented by

View solution

Q. Given the following equation, if the radiation intensity of an antenna is proportional to sin² θ, where θ is the elevation angle, the antenna directivity will be

View solution

Q. The radiation pattern of helical antenna (axial mode) is represented by

View solution

Q. Antenna aperture efficiency is given by

View solution

Q. The characteristic equation of plane wave in E independent of two dimensions y and z is

View solution

Q. A broadside array is shown in figure in which the elements are placed at equal distances. The direction of maximum radiation is represented by

View solution

Q. Which one of the following is correct expression. Where t is torque, B magnetic field, M is the moment

View solution