Get the full course at: http://www.MathTutorDVD.com In this Lesson, you will learn what a capacitor is and why they are important in electrical engineering. You'll learn how capacitors are constructed, how they are used in circuits, and how energy is stored in a capacitor. At the end of the lesson you will understand exactly how capacitors work. We will discuss the electric field inside of a capacitor, and how that field along with the dielectric determines the capacitance in the circuit. The physics of capacitors is not hard to understand, and we will discuss all of the details in this basic electronics tutorial course for beginners.