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Electromagnetic Field Theory
Electromagnetic Field Theory
Exercise: Electromagnetic Field Theory
📂 Electromagnetic Field Theory
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Questions for: Electromagnetic Field Theory
Which of the following is abnormal variation in ionosphere?
A:
Diurnal variation
B:
Seasonal variation
C:
Ionospheric storms
D:
None of the above
Answer:
C
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Triatics are
A:
small height antenna directly mounted on jeeps, ships, etc.
B:
the towers or masts which are used as radiators
C:
the towers or masts which are not used as radiators
D:
supports for antenna conductors.
Answer:
C
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The radio horizon for space waves is about three-fourth as for as the optical horizon.
A:
True
B:
False
C:
D:
Answer:
B
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Radar antennas are usually
A:
dipoles
B:
yagi antennas
C:
parabolic dishes
D:
none of the above
Answer:
C
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A waveguide behave as
A:
high Pass filter
B:
low Pass filter
C:
band Pass filter
D:
all Pass filter
Answer:
A
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