Walter Lewin's lectures are my favorite to watch on youtube. His course videos are available for free and I watch a few videos every week. Several I rewatch. He was a stellar example of an educator.
I do not pretend to understand all of the maths but physics has always fascinated me.
Walter">www.youtube.com/watch?v=El3g9XtZ-iA&list=PLUdYlQf0_sSsfcNOPSNPQKHDhSjTJATPu">Walter Lewin Electricity and Magnetism