Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 1
- Communication Systems - Section 13
- Communication Systems - Section 25
- Communication Systems - Section 24
- Communication Systems - Section 23
- Communication Systems - Section 22
- Communication Systems - Section 21
- Communication Systems - Section 20
- Communication Systems - Section 19
- Communication Systems - Section 18
- Communication Systems - Section 17
- Communication Systems - Section 16
- Communication Systems - Section 15
- Communication Systems - Section 14
- Communication Systems - Section 1
- Communication Systems - Section 12
- Communication Systems - Section 11
- Communication Systems - Section 10
- Communication Systems - Section 9
- Communication Systems - Section 8
- Communication Systems - Section 7
- Communication Systems - Section 6
- Communication Systems - Section 5
- Communication Systems - Section 4
- Communication Systems - Section 3
- Communication Systems - Section 2
26.
The rate at which information can be carried through a communication channel depends on
Answer: Option
Explanation:
Rate of information depends on bandwidth.
27.
Some types of traps used in video IF amplifier of colour TV are
Answer: Option
Explanation:
All these are used.
28.
Direct and reflected sound waves may interfere with each other.
Answer: Option
Explanation:
PAS use moving coil microphones.
29.
A carrier is simultaneously modulated by two sine waves having modulation indices of 0.4 and 0.3. The total modulation index will be
Answer: Option
Explanation:
m1 = 0.4, m2 = 0.3
.
30.
A 1000 kHz carrier is simultaneously modulated with 300 Hz, 800 Hz and 2 kHz audio sine waves. Which of the following frequency is least likely to be present in the output?
Answer: Option
Explanation:
Frequency present in the sidebands is equal to = fc ± fm, fc ± 2fm , fc ± 3fm .
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