Electromagnetic Field Theory Which of the following statement regarding waveguides is incorrect? Waveguides can handle large power at UHF and microwaves At frequencies below the cut off value the wave progresses across the waveguide after total reflections Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves At waveguide can be coupled to a coaxial cable Waveguides can handle large power at UHF and microwaves At frequencies below the cut off value the wave progresses across the waveguide after total reflections Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves At waveguide can be coupled to a coaxial cable ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following circuit element stores energy in electro-magnetic field? Inductor. Condenser. Capacitor. Variable Resistor. Inductor. Condenser. Capacitor. Variable Resistor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of loop antenna is Semicircle Circle Cardoid or Limacon Elliptical Semicircle Circle Cardoid or Limacon Elliptical ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to No change in the reactance value Decrease in the value of reactance No change in the impedance value An increase in the value of reactance No change in the reactance value Decrease in the value of reactance No change in the impedance value An increase in the value of reactance ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A metal sphere with 1 m radius and a surface charge density of 10 coulombs/m2 is enclosed in a cube of 10 m side. The total outward electric displacement normal to the surface of the cube is 5 C. 10 C. 40π C. None of above. 5 C. 10 C. 40π C. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as Transmission efficiency Loss coefficient Front to back ratio None of these Transmission efficiency Loss coefficient Front to back ratio None of these ANSWER DOWNLOAD EXAMIANS APP
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