Resistors are described according to type, resistance, tolerance, and power rating. Perfect capacitors would hold charge indefinitely and not produce any heat. Energy is stored rather than consumed. Capacitors are physically two large surface area that are separated from each other by a thin dielectric material. Electrons can move from one side of a capacitor to another through an external connection, but do not move through it.
Energy is stored in a capacitor in the form of electrons that have moved from one side to the other.
Inductors Inductors are made by coiling conductive wire around a spherical core. This core may be air, iron, or other materials with magnetic susceptibility. The inductor is another reactive device. Perfect inductors have no resistance and would consume no electrical power. Inductors store energy in the form of a magnetic field.