2 Fundamentals of Electricity, Magnetism, and Circuits 13 3 Fundamentals of Mechanics and Heat 49 4 Direct-Current Generators 69 5 Direct-Current Motors 95 6 Efficiency and Heating of Electrical Machines 121 7 Active, Reactive, and Apparent Power 137 8 Tree-Phase Circuits 163 9 The Ideal Transformer 189 10 Practical Transformers 203 11 Special Transformers …