Simon is listening to music. The sound he hears is produced by he loudspeaker in his radio -question1) what is the loudspeaker doing to produce the sound?
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He was listening to the music that was produced by the radio.
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AC supplied to the loudspeaker creates sound waves like this: a current in the coil creates magnetic field. The magnetic field interacts with a permanent magnet, generating a force, which pushes the cone outwards. The current is made to flow in the opposite direction.
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