Capacitor | Capacitor Defination | What is Capacitor | Generate Concept

What is Capacitor

A capacitor consists of conducting plates separated by a non-conducting medium such that it can store a large amount of electric charge in small space
 

Capacitor

Two conductors of a capacitor carry equal but opposite charge at any instant. Capacitance( C ) of a capacitor is given by the ratio of the magnitude of charge q (on either  conductor ) to that magnitude of the potential difference ( V ) between the conductor i.e. 
            C =q/V

• V stands for the potential difference between the conductors.
• The net charge on the capacitor is Zero because both conductors of capacitors have an equal and opposite charge but the magnitude of charge on either conductor is referred to the change on the capacitor.

• The capacitor is also known as the condenser.

Pictorial Symbols: A capacitor of fixed capacitance is represented by symbol shown in  fig.
 

Symbol of Capacitor

Types: Capacitors are named on  the bassis of the shape of the conductors used i.e., parallel plate, spherical plate, cylindrical  pllate, etc.
 

Types of Capacitors

Purpose: It used to store electric charge. While storing charge, it also stores electrical energy for a small period. It can safelly absorb larrge amouun  off charge. Similarly, large amount of charge can be released by it..
Uses: It is used in electrical applicanes such as fans,  mootors, volltage correctors,power faactor improvers etc  andin electronics instrument, apliances, raadio sets, televison sets, computers etc.