A practical demonstration of Lenz's law and back EMF in an inductive relay coil and how to solve it using a FreewheelingFlywheelFlybackSnubberClamp diode. Also the downsides of clamping diodes, and switch arcing supression.br Also a look at an AMAZING potential phenomenon you probably haven't seen before!br Actually, two rather cool things you probably haven't seen before.br Along with transistor ratings, transistor storage current, and Collector-Emitter breakdown voltage, there is a lot to unpack in this video.br br This is a follow-on from the DC Transients Fundamentals video:br br 00:00 - Recap of Relays, Inductors, Faraday & Lenz's Lawsbr 02:30 - Relay Back EMF Explainedbr 07:09 - The Flywheel analogy of Inductorsbr 08:30 - Relay circuit demonstrationbr 12:35 - 700V Back EMF!br 14:43 - BJT Transistor Storage Timebr 17:03 - Back EMF Diode clamp demonstratedbr 19:06 - An AMAZING demonstration!br 24:43 - Trap for young playersbr 25:23 - DOWNSIDES of Back EMF Diodesbr 28:38 - BONUS cool effect of Back EMF diode DEMONSTRATEDbr br Forum: br Subscribe on Odysee: EEVblog Web Site: The 2nd EEVblog Channel: EEVdiscover: Support the EEVblog through Patreon! br AliExpress Affiliate: Buy anything through that link and Dave gets a commission at no cost to you.