Question

Suppose we want to try to construct a very large parallel plate capacitor of C = 1 Fusing square plates. (a) If the dielectric is air (epsilon_r = 1), and the plates are separated by 1 cm, what dimensions will the plates have? (b) Will this capacitor fit within a football field (50 times 100 square yards; 2.54 cm/in and 36 in/yd) or vice versa? To answer this, calculate the total number of square yards for each and compare them. Hopefully this problem will give you an appreciation both for the importance of high dielectric constants and for the technology that's giving us 3000-F capacitors that fit on boards!

Answer 1

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