Show that the result of Problem 61 reduces to that of a parallel-plate capacitor when the separation
Question:
Show that the result of Problem 61 reduces to that of a parallel-plate capacitor when the separation b - a is much less than the radius a.
Data From Problem 61
A capacitor consists of a conducting sphere of radius a surrounded by a concentric conducting shell of radius b. Show that its capacitance is C = ab/k(b – a).
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