There are a lot of different branches to physics, one of those branches is electromagnetism. Electromagnetism is the interaction between electric currents and magnetic fields or simply just the connection of electricity and magnetism. Electromagnetism was discovered in 1820 by a scientist named Hans Christian Oersted. Oersted was holding a compass near a magnet and he realized that the needle in the compass was not pointing north then later did more research and he discovered electromagnetism. One of the most helpful pieces of research on electromagnetism was done by James Clerk Maxwell, Maxwell had published the Maxwell Equations which were equations on how to solve electromagnetism. Electromagnetism is a type of physics, physics is any science that involves matter, energy, science, or force. Mechanics is a another branch if physics that deals with motion, forces, and statistics and kinetics. There are a lot of different points and parts to electromagnetism. A lot of people …show more content…
But the waves can go in a specific speed in a certain direction and that specific speed is called the velocity. There are two parts to electromagnetism magnetism and electricity magnetism is made of waves - magnetic waves - those waves can be bent any waves can actually and when they are it’s called diffraction. Now a solenoid is needed when electromagnet is weak or when the magnetic field is too large or is weak, a magnetic field is an area around a magnet with an electric charge running through, a solenoid is a magnet-like coil with an electric current running through it. There are different types of magnets regular magnets, electromagnets, or dielectric magnet. A There are a lot of different branches to physics, one of those branches is electromagnetism. Electromagnetism is the interaction (Sander, What is Electromagnetism) between electric currents and magnetic fields or simply just the connection of electricity and
With a little stretching, the average physics student should be able to comprehend the principles of magnetic levitation and propulsion through synchronous linear motors. To facilitate the process of understanding this complex material, we suggest that the student go through this web site in order. Make sure you understand the basic physics before moving on to the page which applies these principles to magnetically levitated vehicles.
Electric guitars are devices that generate sound from a set of pickups that convert string vibration into electrical signals for amplification. The sound starts out as vibrations the musician creates while playing. These vibrations are picked up by the pickups of the guitar. What are pickups? Pickups are permanent magnets wrapped around in a coil. Since the strings are made with a special material called ferromagnetic, they interact with the magnetic fields in the pickups and force electrons to move in the loop. Moving electrons can generate a signal that can be read by the amplifier.
In an electromagnetic wave, the constantly changing electric and magnetic fields affect each other so they both oscillate in different axis while the wave moves in a direction perpendicular to the oscillation of the fields as shown in Figure 1.
The relationship between electricity and magnetism is that each phenomenon generates a field. Electric fields can be pictured by thinking in terms of gravitational forces. Where, any two objects have a gravitational force on one another. Any two electric charges have a force between them (either repelling, or attracting depending on polarity). These electric fields are vector forces, with size and direction at each point in space....
the bulk to ordinary matter; the volume of an atom is nearly all occupied by the
Engineer dates back to 1325 when an engine’er, someone who operates an engine, was referred to by a conductor as an engineer. (Ford)
During the seventeenth century, the modern science of physics started to emerge and become a widespread tool used around the world. Many prominent people contributed to the build up of this fascinating field and managed to generally define it as the science of matter and energy and their interactions. However, as we know, physics is much more than that. It explains the world around us in every form imaginable. The study of physics is a fundamental science that helps the advancing knowledge of the natural world, technology and aids in the other sciences and in our economy. Without the field of physics, the world today would be a complete mystery, everything would be different because of the significance physics has on our life as individuals and as a society.
Electric currents produce magnetic fields, they can be as small as macroscopic currents in wires, or microscopic currents in atomic orbits caused by electrons. The magnetic field B is described in terms of force on a moving charge in the Lorentz force law. The relationship of magnetic field and charges leads to many practical applications. Magnetic field sources are dipolar in nature, with a north and south magnetic pole. The magnetic field SI unit is the Tesla, it can be seen in the magnetic part of the Lorentz force law F magnetic = qvB composed of (Newton x second)/(Coulomb x meter). The smaller magnetic field unit is the
The Earth’s magnetic field is a major component to exploring the earth. The north and the south poles have always been a guide for travelers. Using compasses, the direction of the north pole and the south pole has always been provided by the magnetic force of the magnetic field. What many people do not know though is the earth’s magnetic field provides way more than that. The magnetic field, also known as the magnetosphere, protects us from all kinds of harmful substances. Some of these substances include solar wind and harmful radiation from the sun. The magnetosphere also protects the atmosphere, which protects us.
Humans these days take electricity for granted. We don’t truly understand what life was like without it. Most young adults will tell you their life does not depend on electricity, but they aren’t fooling anyone. They all know that their life depends on electricity; whether it’s television, their phone, Google, or the lights in their house. We need to stop taking those things for granted and give credit where credit is due. That is why I chose to write about the scientists who contributed to the discovery of electricity, which then helped modern scientists fuel the electricity phenomenons we now have today.
Faraday visualized a magnetic field as composed of many lines of induction, along which a small magnetic compass would point. The aggregate of the lines intersecting a given area is called the magnetic flux. Faraday attributed the electrical effects to a changing magnetic flux.
Quantum mechanics is a form of physics that is used to study very tiny objects like atoms. Many people have heard of quantum mechanics before whether it was from a book or a television show. Automatically people think “nerd” or “geek” which is pretty much correct, but those people themselves have no idea how quantum mechanics improved their lives or even how it works. It may sound difficult, but it is really not that hard to understand.
The research that established Faraday as the foremost experimental scientist of his day was, however, in the fields of electricity and magnetism. In 1821 he plotted the magnetic field around a conductor carrying an electric current; the existence of the magnetic field had first been observed by the Danish physicist Hans Christian Oersted in 1819.
When you look around, you see all kinds of modern wonders. None of these items would be possible without engineering. Engineering has shaped the lives of humans for thousands of years; it is simply the application of science and math to invent or innovate an item to carry out a human need. Recently, computer engineering has been the basis of the human world. We rely on computers like it is water or air, and it’s come to the point where they could be a necessity for success. Computers are used for pictures, data, development, research, design and much more. The mere fact that humanity prospered for so long without advanced computers is astonishing.
Usually magnetic fields are created when an electric current is applied to a set of conductive wires wound together (Dixon, 2001). Magnetic fields can also be created using Permanent Magnets (PM). Electrical motors can also work as electrical generators (Correla, 1986). Electrical generators are devices capable of converting mechanical energy into electrical energy. An example would be a wind turbine which works as an electrical generator.