The technical discipline which focuses on the equipment, systems and devices that use electromagnetism, electronics and electricity is referred to as electrical engineering. It is involved in their study, design and application. There are several sub-disciplines of electrical engineering. Some of them include telecommunications, computer engineering, signal processing, instrumentation engineering, electronic engineering, radio-frequency engineering and power engineering. Electrical engineering also deals with microelectronics and nanoelectronics. Microelectronics focuses on the designing of small electronic circuit components which are used in an integrated circuit. Nanoelectronics refers to the use of nanotechnology in electronic components. It deals with devices which are generally below 100 nanometers. This book presents the complex subject of electrical engineering in the most comprehensible and easy to understand language. Most of the topics introduced herein cover new techniques and applications of this field. This book is a complete source of knowledge on the present status of this important field.