The Elements of Alternating Currents, by W. S. Franklin and R. B. Williamson

In-8° (21,3 x 13,8 cm), pp. (6), 212, legatura editoriale, con titoli in oro al dorso. Con 186 figure in bianco e nero nel testo. Nell'angolo inferiore interno del contropiatto anteriore, piccola etichetta della Hoepli di Milano. Una nota a matita, di mano coeva, nel margine esterno di pagina 5 e di pagina 7. I fogli della seconda metà del volume presentano la parte superiore un po' ondulata, senza esser minimamente interessati da macchie d'umido. Per il resto, ben conservato. Contents: Chapter I. Magnetic flux. Induced electromotive force. Inductance. Capacity. Chapter II. The simple alternator. Alternating e. m. f. and current. The conctat maker; Chapter III. Measurements in alternating currents. Ammeters. Voltmeters. Wattmeters; Chapter IV. Harmonic electromotive force and current; Chapter V. Problem of the inductive circuit. Problem of the inductive circuit containing a condenser. Electrical Resonance; Chapter VI. The use of complex quantity; Chapter VII. The problem of coils in series. The problem of coils in parallel. The problem of the transformer without iron; Chapter VIII. Polyphase alternators. Polyphase systems; Chapter IX. The theory of the alternator. Alternator designing; Chapter X. The theory of the transformer; Chapter XI. Transformer losses and efficiency. Transformer connections. Transformer designing; Chapter XII. The synchronous motor; Chapter XIII. The rotary converter; Chapter XIV. The induction motor; Chapter XV. Transmission lines.