A capacitor is a two-terminal electrical device that possesses the ability to store energy in the form of an electric charge.
It consists of two electrical conductors that are separated by a distance.
The space between the conductors may be filled by vacuum or with an insulating material known as a dielectric.
The ability of the capacitor to store charges is known as capacitance.
It is given by
Electrical signals are filtered, smoothed, and bypassed using it.
It is a device used for storing electrical energy, it is a passive component in a circuit.
The effect caused by the capacitor in an electrical circuit is a capacitance
Applications of capacitors: 9.1 Energy storage: Used as a storage device when connected to an electrical circuit 9.2 Audio amplification: To assist create a smooth sound, capacitors connect the steady DC impulses with the quickly varying voltages that drive speakers. 9.3 Lasers: The capacitors are built into a laser power unit's capacitor bank, where they are used for buffering the supply voltage. 9.4 Flash camera: An electrolytic capacitor used in flash cameras, professional flashes, and solid-state laser power sources .