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Loadspeakers function by use of eletromagnetism by combining a permanent magnet with a coil of wire in close proximity to each other. Current in the coil causes a magnetic field which interacts with the magnet to produce force which causes the coil to move. Since the coil is mechanically coupled to the cone, the cone also moves and causes air molecules to move as well. When the current fluctuates, the cone also fluctuates, translating the fluctuating current into sound waves.
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What has the author Eugene W Cowan written?
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