Taking up where Volume 1 finishes, this book covers the BTEC module Electrical and Electronic Principles N (86/239) which form a foundation in electricity for so many National Certificate and Diploma engineering students. The aim of the book is to provide a complete set of course notes, freeing the student to spend time learning and doing. The text is complemented by 150 illustrations and over 200 assignment questions to aid and test understanding. Relevant practical exercises are also suggested and described. For completeness sake treatment of some topics is slightly broader than is needed for the BTEC module: this makes the book suitable grounding in electricity for other FE students, such as those on relevant CGLI schemes.