A capacitor is a passive two-terminal electrical component used to store energy electrostatically in an electric field. The capacitors contains two electrical conductors (plates) separated by a dielectric (i.e. insulator). The "nonconducting" dielectric acts to increase the capacitor's charge capacity. A dielectric can be glass, ceramic, plastic film, air, vacuum, paper, mica, oxide layer etc. Unlike a resistor, an ideal capacitor...