This tutorial shows how to derive the three power formulas that are used for electric circuits. This video is part of a full free course on electric circuits. The course covers DC circuits, circuit laws, current & voltage sources, series & parallel resistors, nodal analysis, mesh analysis, and AC circuits. Links to the course are here: Website: https://www.engineer4free.com/circuits YouTube:    • Circuits   If you found this video helpful, then please give a 👍 and subscribe. If you're able to, please support my work on Patreon: https://www.patreon.com/engineer4free Also follow these: Facebook: http://www.facebook.com/engineer4free Instagram: https://www.instagram.com/engineer4free/ Twitter: http://www.twitter.com/engineer4free LinkedIn: https://www.linkedin.com/company/engineer4free Thanks for watching, I hope it helps!