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You are asked to construct a capacitor having a capacitance near 1 nF and a breakdown...

You are asked to construct a capacitor having a capacitance near 1 nF and a breakdown potential in excess of 12000 V. You think of using the sides of a tall plastic drinking glass as a dielectric (with a dielectric constant 4.8 and dielectric strength 12 kV/mm), lining the inside and outside curved surfaces with aluminum foil to act as the plates. The glass is 17 cm tall with an inner radius of 5.11 cm and an outer radius of 5.46 cm. (a) What are the capacitance and (b) breakdown potential of this capacitor?

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