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Communication channel consist of:...

Communication channel consist of:

A

transmission line

B

optical fibre

C

free space

D

all of the above

Text Solution

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The correct Answer is:
To solve the question "Communication channel consists of:", we will analyze the components of a communication system step by step. ### Step-by-Step Solution: 1. **Understanding the Communication System**: A communication system typically consists of three main components: the transmitter, the communication channel, and the receiver. 2. **Identifying the Components**: - **Transmitter**: This is the device that sends the information. It converts the information into a signal suitable for transmission. - **Communication Channel**: This is the medium through which the signal travels from the transmitter to the receiver. - **Receiver**: This device receives the signal and converts it back into a form that can be understood by the user. 3. **Types of Communication Channels**: - **Transmission Lines**: These are physical wires or cables that carry the signal. Examples include coaxial cables and twisted pair cables. - **Optical Fiber**: This is a type of transmission medium that uses light to transmit data. It is known for high-speed data transmission and low signal loss. - **Free Space**: This refers to the transmission of signals through the air, such as in radio and microwave communications. 4. **Conclusion**: Based on the components identified, we can conclude that a communication channel consists of various types of transmission media, including transmission lines, optical fibers, and free space. Therefore, the correct answer is that the communication channel consists of all of the above options. ### Final Answer: The communication channel consists of transmission lines, optical fibers, and free space. ---
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