Radio Speakers — WSU

Radio Speakers — WSU - Radio Speakers - WSU

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Radio Speakers Radio speakers use permanent magnets and electromagnets. A permanent magnet provides a force of attraction or repulsion to the pulsating, polarity changing electromagnetic field produced by the pulsating current from the radio's amplifier. This pulsating current is run through a large coil of wire in the speaker called the voice coil. When the polarity of the magnetic field of the voice coil is the opposite polarity of the permanent magnet's field, the speaker cone is pulled backward towards the permanent magnet. When the polarity of the magnetic field of the voice coil is the same polarity of the permanent
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This note was uploaded on 02/06/2012 for the course AUSV 1320 taught by Professor Johnkelly during the Winter '12 term at Weber.

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