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stylez03
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Homework Statement
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases. Electronic circuitry detects the change in capacitance and thus detects that the key has been pressed. In one particular keyboard, the area of each metal plate is 50.5 mm^2, and the separation between the plates is 0.660 mm before the key is depressed.
Homework Equations
[tex] \Delta C = \frac {e_{0}A} {s_{1}} - \frac {e_{0}A} {s_{0}} [/tex]
The Attempt at a Solution
[tex] \Delta s = s_{0} - s_{1} => s_{0} *(1 - \frac {1} {1 + \frac {s_{0} \nabla C} {e_{0}A}}) [/tex]
I'm not too sure if this is correct, and I'm very bad at the unit conversion and I think that also might be an issue
is [tex] C = 0.300 * 10^{-12} [/tex]
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