Out of the following, which is not an essential element of a communication system?

Options

A. Transmitter
B. Transducer
C. Receiver
D. Communication channel

Answer

B

Explanation

Mobile phones network divides its operational geographical area into small hexagonal cells as is the shape of a typical beehive. Each cell contains a repeater station. Repeaters of different cells are connected through line of sight communication. When you operate your mobile phone it gats connected to the satation of your geographical cell. The message is passed on to all the stations and finally to the phone through the nearest repeater. station. Since your mobile phone works in a geographical cell, hence the name cellular phones.