Inductors are electrical components that oppose the flow of alternating current (AC) by temporarily storing energy as magnetic fields. The action of an inductor is known as Inductance. Inductors often, but not always, consist of wire coils. Sometimes a length of wire, or a pair of wires, is used as an inductor. What is Inductance? Suppose you have a wire 1 million … [Read more...] about Inductors and Inductance : Working, Unit, Function, Types and Uses
If a person receives an electric shock, it is the utmost duty of the observer to rescue the person. The first step is to disconnect the person immediately from the live supply mains by either switching off the main switch. The body should be pushed away with a dry stick or rope. If a stick is not available, then insulate yourself by standing on a dry wooden board, thick … [Read more...] about How to Rescue a Person from Electric Shock?
In recent years, cells and batteries—especially cells—have become available in many different sizes and shapes besides the old cylindrical cells, transistor batteries and lantern batteries. In this article, you will learn about three types of miniature cells and batteries. Silver Oxide type Battery Mercury Type Cell Lithium Type Cell These are used in watches, … [Read more...] about Miniature cells and Batteries – Silver Oxide, Mercury and Lithium Cells
In this article, you'll learn about electrical components that oppose the flow of AC by temporarily storing energy as electric fields. These devices are called capacitors, and their action is known as capacitance. Electrical components can oppose the flow of AC in three ways. Resistance Inductance Capacitance Resistance slows the flow of ac or dc charge … [Read more...] about Capacitors and Capacitance – Working, Unit, Types and Specification
The electromagnetism lecture notes is a book to provide an introduction to Electromagnetism for Electrical and Electronics Engineers. These are compiled by David Tong, Department of Applied Mathematics and Theoretical Physics, University of Cambridge. You can download the book from the link given in this article.Electromagnetism Lecture Notes assume you are familiar with … [Read more...] about [PDF] Electromagnetism Lecture Notes – University of Cambridge