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:

**Equation 5-1. **

where:

C = the capacitance, in Farads

Q = total ...

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