Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
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Category > Management Posted 05 Feb 2018 My Price 3.00

parallel-plate capacitor

A microphone can be formed from a parallel-plate capacitor arranged so the acoustic pressure of the sound wave affects the distance between the plates. Suppose we have such a microphone in which the plates have an area of 10 cm2, the dielectric is air, and the distance between the plates is a function of time given by d(t) = 100 + 0.5 cos(5000t) μm  A constant voltage of 200V is applied to the plates. Determine the current through the capacitance as a function of time by using the approximation 1/(1 + x) ~= 1-x for x <>1. (The argument of the sinusoid is in radians.)

 

 

 
 

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Maurice Tutor
(5)
Status NEW Posted 05 Feb 2018 10:02 PM My Price 3.00

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