Capacitance
A capacitor is a device whose purpose is to store electrical energy which can then be released in a controlled manner during a short period of time.
A capacitor consists of 2 spatially separated conductors which can be charged to +Q and -Q respectively.
The capacitance is defined as the ratio of the charge on one conductor of the capacitor to the potential difference between the conductors.
- Is this a "good" definition? Does the capacitance belong only to the capacitor, independent of the charge and voltage ?