Passive components are basic building blocks of electrical and electronics engineering. This is an effort to fill the need for a book dedicated to this important subject. It covers not just the physics, theory and varieties of passive components but also their applications in engineering and industry. Electric and magnetic fields, which form the basis of capacitors and inductors, are given sufficiently detailed coverage. LCR passive for circuits filters, oscillators and resonant circuits are dealt with in sufficient detail, while power factor correction in grid systems and industry are also covered among other things. The book aims to serve as a ready reference for students, researchers and users of passive components.