The static electricity is the science of static charge including that of electric induction and the motional charge is an electric current. Magnetism in fact is an effect of electric current and electromagnetic induction is the interconsequence of varying electricity and magnetism. Since as per modern theory of atom, the electricity and magnetism have the origins in the matter itself. Therefore chapter of Electric Properties of Matter after Static Electricity and chapter of Magnetic Properties of Matter after Magnetism are introduced. These two chapters thus give introduction of conducting, insulating, semi-conducting and magnetic materials used in Electrical Engineering. Therefore, in the book before the chapters of materials, their related theories are given, and then chapters of materials are dealt. The chapter of Electric Current and Circuits being a link between electricity and magnetism is introduced as a fourth chapter. The chapter one of Introduction deals with the systems of units, which is a proper place for it. The book therefore presents a sound and comprehensive account of fundamental principles and their application orderly arranged.
