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Caption: A loudspeaker is a transducer that converts electrical signal to sound. The most common design uses a cone-shaped diaphragm connected to a frame at its wide end. The other end has a wire coil that can move in a permanent magnet's field. When electrical current is applied to the coil, it interacts with the magnetic field, generating a mechanical force that moves the coil and the diaphragm, thus producing sound.

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Keywords: acoustics, amplifier, amplifying, audio, electric, electrical, induced, induction, loud speaker, loudspeaker, physical, physics, sound, sound speaker, speaker, technology, transducer

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