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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 5
41.
When a plane wave travelling in free space is incident normally on a medium having εr = 4.0, then fraction of power transmitted into the medium is given by
8/9
1/2
1/3
5/6
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
For broadside array, maxima will be obtain at
90°, 270°
180°
45°
at any angle
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Surface impedance at high frequencies is a consideration for
good conductors
semiconductors
dielectrics
ferrites
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The unit of displacement density is
volt/metre
ampere/metre2
coulombs/metre
coulombs/metre2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Dish antennas are
loop
helical
parabolic
conical
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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