Electromagnetic Field Theory A Yagi antenna has a driven antenna Only With a reflector and one or more directors With one or more directors With a reflector Only With a reflector and one or more directors With one or more directors With a reflector ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A square corner reflector is used in which of the following? Radio astronomy TV broadcast Point-to-point communication All of these Radio astronomy TV broadcast Point-to-point communication All of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a Circle None of these Figure of eight Null Circle None of these Figure of eight Null ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The potential that appears at a point in space due to the current which caused it is called potential Retardation Oscillating Lagging the current Accelerating Retardation Oscillating Lagging the current Accelerating ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Skin depth is proportional to 1/√σ. Permeability. √(σ). Frequency. 1/√σ. Permeability. √(σ). Frequency. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Infinity. Depends on strength of current element. Unity. Zero. Infinity. Depends on strength of current element. Unity. Zero. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS