Answer:
Hearing
aid is a battery operated electronic device used by those persons who are hard
of hearing.
Working principle Hearing aid receives sound through a microphone which
converts the sound waves to electrical signals. These electrical signals are
amplified by an amplifier, then given to a speaker of the hearing aid.
Speaker converts the amplified electrical signals to
sound, then sends to the ear of that person for clear hearing.
You need to login to perform this action.
You will be redirected in
3 sec