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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 16
26.
In AM, if modulation index is more than 100%, then
bandwidth increases
the wave gets distorted
power of the wave increases
efficiency of transmission increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The width of air gap on recording head in a tape recorder is about
6 micron
3 micron
1 micron
25 micron
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
In a stereo tape recorder the speed of the tape is
38 m/s
19 m/s
9.5 m/s
4.75 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Which of the following refers to SSB suppressed carrier amplitude modulated system?
A3E
H3E
J3E
C3F
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The frequency at which the piezoelectric effect occurs is primarily determined by
the weight of the crystal
thickness of the crystal
length of the crystal
gain structure of the crystal
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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