Capacitance of a parallel-plate capacitor (17-13)

Question 1 of 4

Question

Area of each capacitor plate

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Question

Permittivity of free space $= 1/(4\pi k)$

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Review

For a parallel-plate capacitor, $C$ depends only on the area $A$ of the plates, the distance $d$ between them, and the material between them. We’ve assumed that the plates are separated by vacuum; in Section 17-8 we’ll explore what happens if the space between the capacitor plates is filled with a different material. Capacitance is therefore a compact way to summarize the electrical properties of a capacitor. In particular, capacitance tells us the amount of charge that can be stored on a capacitor held at a given voltage.