The charging and discharging process of the capacitor

(1) The process of charging.

The process of charging a capacitor (storing charge and electrical energy) is called charging. One plate of the capacitor is connected to the positive pole of the power supply, and the other pole plate is connected to the negative pole of the power supply, and the two plates are respectively charged with the same amount of different charges. After charging, there is an electric field between the two plates of the capacitor, and the charging process stores the electrical energy obtained from the power source in the capacitor.

(2) The process of discharge.

The process of causing a charged capacitor to lose its charge (releasing charge and electrical energy) is called discharging. For example, connect the two poles of a capacitor with a wire, and the charges on the two poles neutralize each other, and the capacitor will release charge and electrical energy. After discharge, the electric field between the two polar plates of the capacitor disappears, and the electrical energy is converted into other forms of energy.