Back emf is a situation called self inductance and occurs in electrical motors. It results in power loss that is unavoidable, since it is a result of physics principles. This video covers the basic of why it occurs. This vide👍 Really like this video? Support by buying me a coffee ☕️ - www.buymeacoffee.com/physicshigh Subscribe - null LIKE and SHARE with your peers. And please add a COMMENT to let me know I have helped you. Support my work either regularly at Patreon: www.patreon.com/Physicshigh OR a one off payment at PayPal: pelooyen@gmail.com Physics High is committed to producing content that teaches physics concepts at a level a high schooler can understand. See www.physicshigh.com for all my videos and other resources. 👥 Social --------------------------------------------------------- Follow me on facebook: @physicshigh twitter: @physicshigh Instagram: @physicshigh thumbnail image : By S.J. de Waard - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=17313755 #highschoolphysicsexplained #physicshigh