A permanent magnet loudspeaker is equipped with a10 ohm voice coil wound on a tube 1 inch in diameter. Theflux density in the air gap is 10,000 lines per square inch. If the impedance of the voice coil is a pureresistance, what will be the maximum thrust delivered to the core if the impressed signal is 20 dB above 0.005watt?
A permanent magnet loudspeaker is equipped with a10 ohm voice coil wound on a tube 1 inch in diameter. Theflux density in the air gap is 10,000 lines per square inch. If the impedance of the voice coil is a pureresistance, what will be the maximum thrust delivered to the core if the impressed signal is 20 dB above 0.005watt?
Chapter29: Service-entrance Calculations
Section: Chapter Questions
Problem 3R: a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____...
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A permanent magnet loudspeaker is equipped with a10 ohm voice coil wound on a tube 1 inch in diameter. Theflux density in the air gap is 10,000 lines per square inch. If the impedance of the voice coil is a pureresistance, what will be the maximum thrust delivered to the core if the impressed signal is 20 dB above 0.005watt? Ans: _____ mN
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