Why are hearing aids used?

Answer 1

Wherever a person lost his/her hearing capabilities he uses a device to improve his/her hearing capabilities.

that device is hearing aids. hearing aids are digital devices that can improve the persons hearing capabilities significantly.

they are an absolute boon for hearing impaired.

If you are looking for the best hearing aids in Delhi then Tarang Speech and hearing clinic should be the first and the last stop you should take.

Answer 2

From a technical point of view, a hearing aid could be constructed without magnets.

But to consider one that does:-

A hearing aid is a device that picks up sound pressure waves with a small diaphragm. The movement of the diaphragm then moves a magnet through a coil of wire and this movement produces an electrical current in the wire. A device that transfers one form of energy to another is called a transducer, and the above type of transducer is called a microphone. This current is amplified with electronic circuitry, and then used to drive a tiny loudspeaker. This part of the process is closely the inverse of that of the microphone. This transducer converts electrical energy into variations in air pressure. Inside the ear canal.

Another use of a magnet in a hearing aid is where a tiny magnet is used to hold the small batteries while they are being transferred from the supply source to the battery compartment in the hearing aid. Remember, many of those who use hearing aids may also have trouble with sight, or tremors. Very smart!

And to finish, an electromagnet is only one type of transducer. A piezoelectric transducer is a quite acceptable substitute, when properly designed.

Answer 3

Hearing aids improve hearing sounds.