See below for lessons and practice questions
Magnetism
Magnetism and Special Relativity
motor principal
direct current motor
How a motor works
How to make an electric guitar
motor works
TVO videos
why frogs levitate
levitating frog
http://www.colorado.edu/news/releases/2014/11/26/star-trek-invisible-shield-found-thousands-miles-above-earth
RHR
electric generator video
how transformers work
how transformers work (3 phase, beyond scope of course)
intro to magnetic induction
Lesson on electromagnetic induction 16 min
Lesson on Lenzs law 5min video
EM notes