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Electromagnetic Field Theory
Electromagnetic Field Theory
Exercise: Electromagnetic Field Theory
📂 Electromagnetic Field Theory
✅
Questions for: Electromagnetic Field Theory
Purpose of antenna is
A:
to transmit and receive energy
B:
to convert EM into electrical
C:
to convert electrical into EM
D:
all of the above
Answer:
D
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Which of following antenna not produces circular polarisation?
A:
Helical
B:
Parabolic
C:
Disc
D:
Yagi
Answer:
D
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The electric intensity for free space is given by
A:
ε
0
d
B:
σ/ε
0
C:
σ.ε
0
D:
d
/ε
0
Answer:
C
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When a plane wave is incident normally from dielectric '1' (μ
0
, ε
1
) onto dielectric '2' (μ
0
, ε
2
) the electric field of the transmitted wave is 2 times the electric field of the reflected wave. The ratio ε
2
/ε
1
is
A:
0.5
B:
1
C:
2
D:
4
Answer:
D
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The curve representing Ohm's law is
A:
linear
B:
a parabola
C:
a hyperbola
D:
sine function
Answer:
A
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