Question

Explain briefly the following terms used in communication system:
(i) Transducer
(ii) Repeater
(iii) Amplification

Answer 1

Transducer- A device which converts one form of energy into another. E.g. in a microphone a transducer converts sound energy into electrical energy.

Repeater - It can be defined as, receiver+amplifier+transmitter.

Amplification- When a signal covers a long distance its strength decreases, therefore its strength should be increased, this is done by the process of amplification.

It is clear that amplification means increment of signal strength.