How to make speaker at home | घर पर स्पीकर कैसे बनाये | Simplest way to make speaker.

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In order to translate an electrical signal into an audible sound, speakers contain an electromagnet: a metal coil which creates a magnetic field when an electric current flows through it. ... A microphone uses the same mechanism as a speaker in reverse to convert sound into an electrical signal.
think used to make speaker are a magnet, membrane, metallic wire like copper wire.
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Make home theater

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