(a) What do you mean by bandwidth of a signal ? Give its importance.

(b) Differentiate between Analog and Digital communication.

(c) Write the functions of transducer and repeaters.

 

 
 
 
 
 

Answers (1)
S safeer

(a) Bandwidth is defined as a range within a band of frequencies. it is also the amount of data that can be transmitted in a fixed amount of time.

The type of communication system needed for a given signal depends on the band of frequencies

(b)  Analog communication uses analogue signals for transmission and reception of data.

Analogue signals are the continuous   time-varying signals

Digital communication uses digital signals for transmitting and receiving data. 

digital signals are those signals which consist of discrete values.

                                                                     

(c) Transducer: (i) It is a device which converts one form of energy into another   

(ii)  It converts physical variables like pressure, force, displacement etc, into its corresponding electrical signal

Repeater: (i) A repeater is a combination of a receiver and a transmitter.

ii) Repeaters are used to extend the range of a communication system            

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