Which of the following explains the principle of working of a capacitor?

مندرجہ ذیل میں سے کون ایک کپیسیٹر کے کام کرنے کے اصول کی وضاحت کرتا ہے؟

Electric potential is changed while keeping charge constant

Charge is changed while keeping electric potential constant

Neither charge nor electric potential is constant

None of these

A capacitor stores energy by changing the electric potential while keeping the charge constant.

The capacitance depends on the stored charge and the potential difference across its plates.