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Calculate the capacitance of a capacitor whose plates a 20.0 cm by 3.0 cm and are separated by a 1.0mm air gap.
a) What is the charge on each plate if the capacitor is connected to a 12.0 V battery?
b) What is the electric field between the plates?
c) Extimate the area of the plates needed to achieve a capacitance of 1.0F, given the same air gap?
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