Electromagnetism

A loudspeaker generates sound through a simple yet ingenious process. An electrical audio signal is fed into a coil, creating a varying magnetic field that interacts with a permanent magnet, causing the coil to vibrate. This vibration drives a diaphragm, which moves the surrounding air, producing sound waves. The larger the diaphragm's surface area, the louder the sound. This fundamental principle lies at the core of loudspeaker technology, enabling us to enjoy music, movies, and various audio experiences.