Question

what is microphone and what is use of microphone

Answer 1

A loudspeaker, a transducer that turns an electrical signal into sound waves, is the functional opposite of a microphone. Since a conventionalspeaker is constructed much like a dynamic microphone (with a diaphragm, coil and magnet), speakerscan actually work "in reverse" as microphones.

Answer 2

THE VOICE COIL IS SITUATED IN THE MAGNETIC FIELD.THE DIAPHRAGM CONNECTED TO THE VOICE COIL VIBRATES IN ACCORDANCE WITH THE SOUND WAVES FALLING ON IT.AS A RESULT ELECTRICAL SIGNALS CORRESSPONDING TO THE SOUND WAVES ARE GENERATED IN THE VOICE COIL.IN THE MICROPHONE ,MECHANICAL ENERGY IS CONVERTED TO ELECTRICAL ENERGY.