THE ELEMENTS 



OF 



ELECTRICAL ENGINEERING 



A TEXT BOOK FOR 

 TECHNICAL SCHOOLS AND COLLEGES 



BY 



WILLIAM SUDDARDS FRANKLIN 



PROFESSOR OF FHYSICS IN LEHIGH UNIVERSITY 



AND 



WILLIAM ESTY 



PKOFHSSOR OF ELECTRICAL ENGINEERING IN LEHIGH UNIVERSITY 



VOLUME II. 

 ALTERNATING CURRENTS 



SECOND EDITION. REVISED AND ENLARGED. 

 FIFTH THOUSAND. 



Jieto gorfc 

 THE MACMILLAN COMPANY 



LONDON: MACMILLAN & CO., LTD. 

 1908 



All rights reserved 



