loudspeaker

A loudspeaker is a device that converts electrical signals into sound. It consists of a coil of wire (voice coil) attached to a cone or diaphragm. When an electrical audio signal passes through the coil, it creates a magnetic field that interacts with a magnet, causing the coil and cone to vibrate. These vibrations produce sound waves in the air, which we hear as music, speech, or other sounds. Loudspeakers are used in various audio devices such as stereo systems, public address systems, and headphones, enabling us to hear audio content clearly and at different volumes.