Electrical engineering is a branch of engineering concerned with the study of electromagnetism, electronics and electricity, and their applications. It applies the theories and principles of physics and mathematics to understand electrical devices. Various sub-fields of this discipline are power engineering, telecommunications, signal processing, instrumentation, etc. A comprehensive knowledge of electrical engineering is of significance in the design, development and operation of electrical systems, like telecommunication systems, electric power stations, etc. This book contains some path-breaking studies in the area of electrical engineering. It traces the progress of this field and highlights some of its key concepts and applications. For all readers who are interested in electrical engineering, the case studies included in this book will serve as an excellent guide to develop a comprehensive understanding.