How to Make LoudSpeaker / Homemade DIY Speaker using Plastic bottle

Homemade DIY audio LoudSpeaker / Building your own DIY speaker using a plastic bottle / How to Make simple Plastic bottle Speaker / This video gives you a better understanding how loudspeakers work. Simple science project.
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A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer which converts an electrical audio signal into a corresponding sound. The most widely used type of speaker today is the dynamic speaker. The dynamic speaker operates on the same basic principle as a dynamic microphone, but in reverse, to produce sound from an electrical signal. When an alternating current electrical audio signal is applied to its voice coil, a coil of wire suspended in a circular gap between the poles of a permanent magnet, the coil is forced to move rapidly back and forth due to Faraday’s law of induction, which causes a diaphragm (usually conically shaped) attached to the coil to move back and forth, pushing on the air to create sound waves.



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