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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 5
16.
For a quarter wave transformer, characteristic impedance is related with input and load impedances as
Z0 = ZR/ZS
Z0 = ZR . ZS
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
An electron when placed midway between two equal and opposite charges will
remain stationary
oscillate between the charges
be thrown out of the field
spin in the field
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Which of the following is the abnormal phenomena observed in the ionosphere?
Communication link interference
Sun spot cycle
Fading and whistlers
Tides and winds
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In a loss-less transmission line
R << ω L; G << ω C
R = ω L, G = ω C
R >> ω L; G >> ω C
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Which layer is least important in high frequency propagation?
D layer
E layer
F1 layer
F2 layer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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