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In this class you will learn what coils are, how many types exist and what their uses are in electronics. 00:00 Introduction 00:10 What is a coil? 00:56 Symbols 01:44 What is inductance? 02:53 Voltage and current sign 03:37 Inductance value 04:55 Coil characteristics 05:39 Quality factor 06:42 Air core coils 08:06 Laminated iron core coils 08:42 Powdered iron core coils 10:37 Toroidal core coils 12:22 Shielded coils 13:38 Speakers 17:28 Relay 19:05 Motors and coolers #BasicElectronics #Coils #EasyElectronics