2) A parallel plate capacitor is used to build an accelerometer. It senses movement by allowing one plate to slip with respect to the other, so that the area of overlap of the plates varies from ten percent of their actual area to 100 percent of the area, depending on the amount of acceleration experienced. The distance between the plates is fixed. In operation, the plates are charged periodically to some reference voltage Vref, then read after (possibly) moving. There is no synchronization between the plate charging and the movement. What is the range of voltages that can be read on the plates?