Many computers keyboard buttons are constructed of capacitors as shown in figure 26.3. When a key is pushed down the soft insulator between the movable plate and the fixed plate is compressed. When the key is pressed. What happens to the capacitance. a. It increases b. It decreases c. It changes in the way you cannot determine because the electric circuit connected to the keyboard button may cause a charge in ∆V.

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Q: Why are dielectric materials used in capacitors

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Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.