Electromagnetic Field Theory The virtual height of an ionospheric layer is __________ true height Higher than No relation Equal to Less than Higher than No relation Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For a line characteristic impedance zo terminated is load zo/3, the reflection coefficient is 1/3. – ½. – 1/3. 2/3. 1/3. – ½. – 1/3. 2/3. ANSWER DOWNLOAD EXAMIANS APP
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 A coil of 300 turns is wound on a non-magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The current of 3 A will be 113.04 mH. 113.04 µH. 37.68 µH. 37.68 mH. 113.04 mH. 113.04 µH. 37.68 µH. 37.68 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then transformer is an ideal transformer. turns ratio of the transformer is also two. it is a perfect transformer. none of these. transformer is an ideal transformer. turns ratio of the transformer is also two. it is a perfect transformer. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic circuit with cross sectional area of 20 cm2 is to be operated at 50 Hz from 120 Vrms supply. The number of turns required to active a peak magnetic flux density of 1.8 T in the core flux is 150. 300. 450. 600. 150. 300. 450. 600. ANSWER DOWNLOAD EXAMIANS APP
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