If you search the internet for “transformer equivalent circuits,” you’ll get five pages of over 100 small circuit diagrams. Figures 1 and 2 show two typical circuits, one that’s ...

6. In this transformer schematic (left) and equivalent circuit (right), the magnetizing current is flowing through an imaginary inductor, LM, in parallel with the primary.

Cover also the design and use of multi-range voltmeters, ammeters, and ohmmeters, series, parallel and series parallel circuits, the use of bridges, phasor analysis of AC circuits, transformers, ...