PDF's with key concepts and some worked-out problems.
examples21.pdf Electric field
examples22.pdf Gauss's law
examples23.pdf Electric potential (voltage)
examples24.pdf Capacitors
examples25.pdf Resistivity
examples26.pdf DC circuits
examples27.pdf Magnetism
examples28.pdf Sources of Magnetic Field
examples29.pdf Electromagnetic Induction
examples30.pdf Inductors, AC