The Mechanism Of Capacitor

Headings:i) Introductionii) Types of Capacitoriii) Mechanism iv) Non Ideal Behaviorv) Uses Of Capacitor

What Is A Capacitor?

                            Capacitors are two-terminal electrical elements. It is an electrical device consisting of two conductors by an insulating or dielectric medium which carrying equal and opposite charges.

History:1)In October 1745, Ewald Georg von Kleist of Pomerania,

Germany, found that charge could be stored by connecting a high-voltage electrostatic generator by a wire to a volume of water in a hand-held glass jar.Von Kleist's hand and the water acted as conductors, and the jar as a dielectric.

2)Daniel Gralath was the first to combine several jars in parallel into a "battery" to increase the charge storage capacity.

3) Benjamin Franklin investigated the Leyden jar and came to the conclusion that the charge was stored on the glass, not in the water as others had assumed

4)Leyden jars or more powerful devices were used exclusively up until about 1900,They weren’t more flexible like today’s.

5)Early capacitors were also known as condensers, a term that is still occasionally used today, particularly in high power applications, like automotive systems. The term was first used for this purpose to store a higher density of electric charge than a normal isolated conductor. It was found by Alessandro Volta in 1782.