Combination of capacitor.
In series combination capacities are connected

Equivalent capacitance of series combination will be less than the smallest capacitor connected in the circuit.

Parallel Combination
in parallel combination of capacitor PD between each capacitor remain same but the charge is stored why is capacitor will be different each plate of capacitor is connected with common terminals of battery parallel circuit.

Types Of Capacitor

Polar capacitor
 it is a capacitor used DC and also known as carbon capacitor it gives a direct current and can be used electronic circuit.

Non polar capacitor
such type of capacitor is AC capacitor with alternating current in widely used in AC circuit variables

Variable capacitor
this is also DC capacitor and known as condenser it is widely used in radio and and television sets for a fine tuning and controlling the other parameter like volume setting.

Multi plate capacitor
 this capacitor contains a large number of plates these plates are separated by small distance which is a filled with dielectric medium in this capacitor distance can be varried out

Electrolytic capacitor
this is also to terminate an instrument used for restoring the charges in the form of voltage electrolytic capacitor contains large amount of capacitor upto kilo farad its plates are super