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Without dielectric materials, you probably wouldn’t be able to watch this video! These materials are very common in all the technologies we use everyday. Dielectrics are a class of insulators that can get polarised when subjected to an electric field. We will see in this video how this happens and why such a property is so useful to electrical and electronical application, especially capacitors. You will learn also tons of concepts like electric susceptibility, permittivity and dielectic constant, that may appear a little obscure at first sight, but when you understand dielectrics, their meaning becomes quite clear! So… get ready for the deep dive! - - - - - - - - - Structure of the video: 00:00 Introduction 00:42 What is a dielectric material? (etymology and definition) 02:17 Electric field applied to a conductor (the reason behind Faraday’s cage) 03:49 Electric field applied to a dielectric (introduction to polarization) 07:25 What is electric susceptibility? (polarization by an electric field) 08:01 What is permittivity? 08:24 What is a dielectric constant? 09:00 Uniform electric fields 10:10 What is Capacitance? 10:45 Dielectrics in capacitors 12:17 dielectrics are materials that can store electrical potential energy (Conclusion)
File Size: 94 MB
Category: Technology & Science
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