When an electric field is applied to the plates, a charge is stored there, a capacitive key switch has two small metal plates on the printed circuit board and another metal plate on the bottom of a piece of foam. When pressed the key, the movableanbsp;...
Title | : | Computer Peripherals and Interfacing |
Author | : | Jyoti Snehi |
Publisher | : | Firewall Media - 2006-01-01 |
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