
According http://www .Energysaving-devices.The definition of a capacitor is an electronic device used to store a charge.While this is a simple definition, it is consistent with all the definitions found and understood online by my research.Capacitors can be found in almost any complex electronic device.They are second only to resistors because they have many different types of capacitors, but they work basically the same way.A more technical explanation of the capacitor is that a pair of metal plates are separated by a gap in which there is an insulating material called the dielectric.