Are The Speakers Promotional Substrates?
11 April 2018
Are The Speakers Promotional Substrates?
Speakers are the devices that converts electric current varieties into sound vibrations. They convert and output, input electrical signals, to the level a person can hear. In French it is named as “haut-parleur” (speaks high). Electromagnetic waves input to the radio are converted into sound waves and get a high frequency. Anyway this sound is not strong enough to be heard but only be listened by headphones. In case we connect speaker to the headphones input then w emay easily hear.
The speakers contains a magnet, a coil and a thin plate that can freely vibrate in front of the coin. Current from the radio passes trough the coin included in the magnetic field of the magnet. The coil creates vibrations suitable for the current that flows trough the plate in front of it. The plate vibrates the paper of speakers twisted to the shape of cone. Therefore the sound waves get higher and become available to hear.