Exercise: Electromagnetic Field Theory

Questions for: Electromagnetic Field Theory

VSWR can have any value between
A:
0 and 1
B:
- 1 to + 1
C:
0 to ∞
D:
1 to ∞
Answer: D
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In order to receive a vertical polarized wave, the conductor of the dipole should be mounted
A:
horizontally
B:
vertically
C:
at an angle of 45°
D:
at an angle of 90°
Answer: B
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Coaxial cables can be used for which frequency?
A:
15 kHz
B:
10 MHz
C:
200 MHz
D:
2000 MHz
Answer: C
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An electromagnetic wave incidents on a perfect insulator at an angle. If the wave is not entirely parallel polarized, then
A:
the reflected wave will be entirely polarized parallel to the plane of incidence
B:
there will be no reflection
C:
the reflected wave will be entirely polarized perpendicular to the plane of incidence
D:
any of the above
Answer: C
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The force acting on a charge q moving with velocity in a region of electric field and magnetic field is
A:
r + x
B:
q( + x )
C:
q( + x )
D:
q
Answer: C
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