First Edition of my book on 'Utilization of Electrical Energy' for Semester VI of Diploma Course in Electrical Engineering Group for the Board of SBTE, Zharkhand. I am thankful to students and teachers as they have highly appreciated and accepted my previous books, which cover cent percent syllabus and gives additiol knowledge useful for oral examition also. In this edition, questions those have been occurred in the previous S.B.T.E. examition question papers have been added for reference and study of students accordingly.