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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 7
1.
When the phase velocity of an EM wave depends on frequency in any medium, the phenomenon is called
scattering
polarization
absorption
dispersion
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
A hertzian dipole has a radiation pattern with
a null in the direction of the dipole
a null in the plane perpendicular to the dipole
a peak in the direction of the dipole
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Circular polarized waves result when
magnitudes are the same
phases are the same
magnitudes are same and phase difference is 90°
magnitudes are same and phase difference is zero
Answer: Option
Explanation:
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4.
Permeance is analogue to
reluctance
conductance
capacitance
resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Skip distance (D) is
(D ∝ f)
D = f
D < f
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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