Working Principle of a Capacitor 1. LearnEngg presents a detailed explanation of the Working Principle of a Capacitor. 2. The working principle of a capacitor is based on its ability to store energy in the form of an electrical field between two conductive surfaces. 3. The Physical Structure A basic capacitor (often called a Parallel Plate Capacitor) consists of three main parts: • Two Conductive Plates: Usually made of aluminium or other metals. • A Dielectric: An insulating layer between the p