Electronics and Communication Engineering - Communication Systems
Exercise : Communication Systems - Section 5
- 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
6.
When energy is fed into open wire transmission line the energy may get dissipated due to
Answer: Option
Explanation:
All the three cause dissipation of energy as heat.
7.
Fourier series expansion of a real periodic signal with fundamental frequency is given by 
It is given that c3 = 3 + j5. then c-3 is
It is given that c3 = 3 + j5. then c-3 isAnswer: Option
Explanation:
For real signal
ck = c*-k
3 - i5.
8.
Loudness control gives
Answer: Option
Explanation:
For depth in sound the low frequency notes, (i.e., bass) need more amplification.
9.
A mobile telephone has a range of about
Answer: Option
Explanation:
Mobile telephone has about 50 km range.
10.
If transmitted power is 75 kW, the field strength at 30 km distance will be about
Answer: Option
Explanation:
Using the derivation, 
.
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