CAPACITANCE OR CAPACITOR

CAPACITANCE OR CAPACITOR

CAPACITANCE

the property of a conductor to store electric charge is know as capacitance.it is defend as the ratio between the charge and its potential.if the q is the charge in a conductor of potential v then the capacitance c is given by:- c = q/v

the unit of capacitance is farad(F).one farad is the capacitance of a capacitor which require one coulomb electric charge to raise its potential by one volt, in practice, micro farad and pico farad is useds

1farad= 1 columb/volt

CAPACITOR

a capacitor is a device which increase the capacitance of the conductor.it usually consist of two conductors , one charged and other is earth connected.the space between the plate is filled with some insulating material called dielectric. 

the capacitance of capacitor depends on several factors such as

• area of over lap between the plates
• distance between the plates
• nature of dielectric medium

capacitor uses:

• used to store electric charge
• used to measure potential difference and small currents
• it is useful in reducing voltage fluctuation,generating oscillations,for providing time delay in various electric circuits
• with use of capacitor require electric field can be obtained