Question:
A telephonic communication service is working at carrier frequency of $10 \,GHz$. Only $10\%$ of it is utilized for transmission. How many telephonic channels can be transmitted simultaneously if each channel requires a bandwidth of $5\, kHz$ ?
A telephonic communication service is working at carrier frequency of $10 \,GHz$. Only $10\%$ of it is utilized for transmission. How many telephonic channels can be transmitted simultaneously if each channel requires a bandwidth of $5\, kHz$ ?
Updated On: Jul 29, 2024
- $2 \times 10^3$
- $2 \times 10^4$
- $2 \times 10^5$
- $2 \times 10^6$
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The Correct Option is C
Solution and Explanation
Frequency of carrier $=10 \times 10^{9}\, Hz $
Available bandwidth $=10 \% \text { of } 10 \times 10^{9}\, Hz $
$=10^{9} \,Hz$
Bandwidth for each telephonic channel $=5\,, kHz$
$\therefore $ Number of channels$=\frac{10^{9}}{5 \times 10^{3}}$
$=2 \times 10^{5}$
Available bandwidth $=10 \% \text { of } 10 \times 10^{9}\, Hz $
$=10^{9} \,Hz$
Bandwidth for each telephonic channel $=5\,, kHz$
$\therefore $ Number of channels$=\frac{10^{9}}{5 \times 10^{3}}$
$=2 \times 10^{5}$
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Communication Systems
A system that describes the information exchange between two points is called the communication system. The transmission and reception process of information is called communication. The major elements of communication are such as:
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- Channel or medium of communication
- The Receiver of information
Examples Of Communication Systems:
The following are the examples of communication systems:
- Internet
- Public Switched Telephone network
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