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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 6
36.
The characteristic impedance is given by
Z0 = Zoc . Zsc
Answer: Option
Explanation:
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37.
Surface integral of the electric field intensity is
differential of volume flux
electrical charge
net flux emanating from the surface
none of the above
Answer: Option
Explanation:
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38.
The essential condition for antenna array to be linear is that
individual antennas of the array must be of equal size
individual antennas of the array must be equally spaced along a straight line
any two individual antennas of the array must not be in the same direction
none of the above
Answer: Option
Explanation:
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39.
Directivity gain depends on
the distribution of radiated power in space
solid angle of the radiated field pattern
both (a) and (b)
none of the above
Answer: Option
Explanation:
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40.
The fluctuation in the received signal strength at the receiver of a random variation in the received signal is known as
fluctuation
fading
absorption
cycling
Answer: Option
Explanation:
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