Tech Trill

Capicator is anelectrical or electronic component which stores electricalenergy in the form of electric charges.
Applications of Capacitor:-
a)to store electrical energy
b)to oppose change in the applied voltage
c)to block d.c and allow a.c to pass through it
d)to improve the p.f of a circut
e)to split the phase and start S/ph a.c motor
f)to bypass high frequency signals and block low frequency signals
g)in radio tuning circuts,oscilllators,bypass filters etc.
Types of capacitors:-
1)Fixed capacitors:-Capacitors designed for a particular value and whose
  value cannot be varied as and when required.
Based onthe dielectric material used, fixed capacitors are further classified
as follows
(i)Mica capacitors
(ii)Cermic capacitors
(iii)Paper capacitors
(iv)Plastic film capacitors
(v)Electrolytic capacitors.
2)Adjustable capacitors:-A capacitor which is designed to adjust the value
  of capacitance is called as adjustable capacitor.
3)Varible capacitor:-Varible Capacitors are those whose resistance value can
  be varied continuosly or in steps.