This new edition is based on the feedback received from teachers & students from different part of the country. Many technological universities have revised the syllabi to include new emerging topics like Holography & Nanotechnology to the basic curriculum. In this edition these topics have been included. Also many more objective questions and answers have been added to facilitate the students to have self-evaluation of the subject. Salient Features Concepts of Electromagnetics, Electrical Technology Electromechanics are elobarated furthur Superconductivity, Lasers and Fiber Optics are made simple & Student Friendly New topics on Holography is added in chapter on Lasers A new chapter on Nanotechnology is added