An Etymological Dictionary of Astronomy and Astrophysics

The ratio of the charge Q on either conductor of a → capacitor to the → potential difference, or → voltage V between the conductors. It is given by C = Q/V. Capacitance can also be described by the relation:

C = ε₀A/d, where

ε₀ is the → permeability of free space, A is the area of one capacitor plate, and d is the distance between the capacitor plates. Capacitance is measured in → farads or, for convenience, in microfarads.

Etymology (EN): From capacit(y), → capacity + → -ance, a suffix used to form nouns either from adjectives in -ant or from verbs.

Etymology (PE): Gonjâyi, from gonjâ “able to hold,” from gonjidan→ capacity + -yi noun suffix.