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Electromagnetism Essay Topics & Paper Examples

Electricity and Magnetism

Human civilisation has dealt with magnetism for millennia, earliest evidence dating as far back as 1000 BC where the ancient Chinese civilisation discovered a naturally occurring magnetic ore, magnetite. This ore, commonly known as lodestone was used by the ancient Chinese as a geomagnetic compass, however, no one really knew what magnetism was at the time. For centuries on, we have had basic knowledge regarding electricity based upon static electricity found from rubbing amber and fur. However, up until the early 1800s, our understanding of electricity and magnetism was severely limited – considering both of them as entirely separate phenomena. Before we delve deeper into the topic, what is electricity and magnetism? Electricity is, simply, the flow of electrons on…

Induction type energy meter

Single phase induction type energy meter is also popularly known as watt-hour meter. This name is given to it. This article is only focused about its constructional features and its working. Induction type energy meter essentially consists of following components: 1. Driving system 2. Moving system 3. Braking system and 4. Registering system Driving system It consists of two electromagnets, called “shunt” magnet and “series” magnet, of laminated construction. A coil having large number of turns of fine wire is wound on the middle limb of the shunt magnet. This coil is known as “pressure or voltage” coil and is connected across the supply mains. This voltage coil has many turns and is arranged to be as highly inductive as…

Physics of Xray

The X-Ray imaging system has one function, and that is to provide a constant flow of electrons that are strong enough to produce and x-ray beam to create an image. There are many different sizes and types of imaging systems but no matter what system you use, every type will have three main sections. Those sections are the control console, the high voltage generator and the x-ray tube. The x-ray tube is located in the exam room, the control console is located in an adjoining room that is separated from the exam room by a lead wall to protect the radiographer from radiation exposure. The wall will have a window so that the patient can be viewed without having to…