Question

this is very simple or stupid question...
Capacitor is the element to store energy in it, right?
then why does the process of storing energy need to use as an engineering element?
I need a lot examples in simple way..
Do me a favor, please.. haha..

Answer 1

A capacitor stores electrical energy by generating a potential between two oppositely charged metal plates.

Capacitors are used by electrical engineers in electronic circuits for multiple reasons. The first is its energy storage capacity, as you pointed out. The second is because capacitors can act as an electrical buffer, resisting sudden currents and large changes in voltage across them. This means that you can use capacitors to protect fragile components from power surges and other similar phenomena.

A specific example of this surge-protection implementation is the use of capacitors to protect LEDs from burning out. Without capacitors, LEDs would not be a viable lighting source.

Answer 2

Capacitor charged up and stores energy then discharged rapidly though a bulb. This is the basis of a photographic flash light.
Capacitor charged up and discharged through a resistor. The time taken for discharge depends on the values of the resistance and capacitance in the circuit so it can be used for timing applications.
Capacitor shares its energy with an inductor in an oscillatory manner. This is a resonant circuit which is used for tuning radios to a particular radio station.