Friday, July 31, 2015

Why Magnet Is Used In Speaker ..??

Why Magnet Is Used In Speaker ..??

 

 

 All speakers don't use magnets. Only magnetic speakers use a magnet to produce mechanical vibration (sound) through the interaction between the magnetic field created by the pulsating electronic signals passing through a coil suspended in the strong magnetic field of the magnet. Other types of speakers like piezo speakers (for example, buzzers in wrist watches) don't use a magnet. Piezo speakers use piezo electric effect. They generate mechanical vibration by applying an electric signal to a piezo electric crystal.

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