Electrical engineering is the engineering discipline which encompasses the use of electronics, electricity and electromagnetism for driving innovations. It is divided into other significant sub-disciplines such as power engineering, electronics, computer engineering, signal processing, microelectronics, etc. Power engineering is concerned with the production, transmission and distribution of electricity. It also deals with the design of electric generators, transformers, electric motors, etc. Electronic circuits are designed using capacitors, resistors, inductors, transistors and diodes to achieve a particular function. The design and testing of such circuits is under the scope of electronic engineering. Signal processing deals with the manipulation and analysis of signals. It has applications in communications, control, broadcast engineering, radar, power electronics, etc. This book covers in detail some existent theories and innovative concepts revolving around electrical engineering. The various sub-fields of this discipline along with technological progress that have future implications are glanced at in this book. It is a vital tool for all researching or studying electrical engineering as it gives incredible insights into emerging trends.