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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 10
16.
End fire array is called a linear resonant dipole array.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Which of the following statements is incorrect regarding Balun transformer?
It changes impedance like current transformer
It changes balanced to unbalanced line
It is used to couple a co-axial line to a parallel line wire
Any of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The maximum usable frequency for the 'E' layer is 10 MHz.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In free space
phase velocity is greater than light velocity
phase velocity is equal to group velocity
phase velocity is equal to light velocity
Both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Laplacian of a scalar function V is
gradient of V
gradient of the gradient of V
divergence of V
divergence of the gradient of V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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