CHAPTER 5The Physical Basis of Capacitance

A capacitor is physically made up of two conductors, and between every two conductors there is some capacitance.


The capacitance between any two conductors is basically a measure of their capacity to store charge, at the cost of a voltage between them.

If we take two conductors and add positive charge to one of them and negative charge to the other, as illustrated in Figure 5-1, there will be a voltage between them. The capacitance of the pair of conductors is the ratio of the amount of charge stored on each conductor per voltage between them:



C = capacitance, in Farads

Q = total amount ...

Get Signal and Power Integrity - Simplified, 3rd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.