Course notes 2012 - University of Leicester
... models of dynamic systems. Such models are typically used for computer simulation to enable engineers to study the (dynamic) behaviour of such systems in order, for example, to assess design characteristics before a prototype is constructed or to design a suitable control system. A good model and an ...
... models of dynamic systems. Such models are typically used for computer simulation to enable engineers to study the (dynamic) behaviour of such systems in order, for example, to assess design characteristics before a prototype is constructed or to design a suitable control system. A good model and an ...
Electric Field Lines
... What is a “force” field anyway? In physics, a ‘force’ field describes an area where objects experience a force-at-a-distance such as gravity, electrostatic force, or magnetism. In each case, the field is generated by a certain type of particle: • Gravity by a mass • Electrostatic by a charge • Magne ...
... What is a “force” field anyway? In physics, a ‘force’ field describes an area where objects experience a force-at-a-distance such as gravity, electrostatic force, or magnetism. In each case, the field is generated by a certain type of particle: • Gravity by a mass • Electrostatic by a charge • Magne ...
video slide
... magnetic field induces an emf • To learn how Faraday’s law relates the induced emf to the change in flux • To determine the direction of an induced emf • To calculate the emf induced by a moving conductor • To learn how a changing magnetic flux generates an electric field ...
... magnetic field induces an emf • To learn how Faraday’s law relates the induced emf to the change in flux • To determine the direction of an induced emf • To calculate the emf induced by a moving conductor • To learn how a changing magnetic flux generates an electric field ...
Monday, April 1, 2013
... 1. Define your system by deciding which objects would be included in it. 2. Identify the internal and external forces with respect to the system. 3. Verify that the system is isolated. 4. Set the final momentum of the system equal to its initial momentum. Remember that momentum is a vector. Monday, ...
... 1. Define your system by deciding which objects would be included in it. 2. Identify the internal and external forces with respect to the system. 3. Verify that the system is isolated. 4. Set the final momentum of the system equal to its initial momentum. Remember that momentum is a vector. Monday, ...
![Question Two [15 marks]](http://s1.studyres.com/store/data/003690533_1-3f6aadb25060fe335cebf6717500c22f-300x300.png)
Physics GRE Comprehensive Notes - Are you sure you want to look
... These are notes that I wrote up when studying for the physics GREs. The notes are extensive and were meant to include every possible question on the exam. While they are not fully inclusive they come pretty close and were a very big help for me on the GREs. They are largely based on previous GRE exa ...
... These are notes that I wrote up when studying for the physics GREs. The notes are extensive and were meant to include every possible question on the exam. While they are not fully inclusive they come pretty close and were a very big help for me on the GREs. They are largely based on previous GRE exa ...
Linear DC Motors
... Before electrical machinery can be adequately discussed, it is essential that we first introduce magnets in a manner which explains how they are employed in electrical machinery. It is helpful to recap a few basic conclusions from physics. - Magnets may exist as permanently magnetized materials, log ...
... Before electrical machinery can be adequately discussed, it is essential that we first introduce magnets in a manner which explains how they are employed in electrical machinery. It is helpful to recap a few basic conclusions from physics. - Magnets may exist as permanently magnetized materials, log ...
Electromagnetic Induction Lab
... In 1831, Michael Faraday - after many experiments - discovered that he could create a current in a wire by moving it through a magnetic field. In principle, he determined that whenever the magnetic field was changing perpendicular to a conductor that a current was induced. His discovery eventually l ...
... In 1831, Michael Faraday - after many experiments - discovered that he could create a current in a wire by moving it through a magnetic field. In principle, he determined that whenever the magnetic field was changing perpendicular to a conductor that a current was induced. His discovery eventually l ...
H local
... For resonance either Hext must be increased or decreased relative to the situation where Hlocal = 0 ...
... For resonance either Hext must be increased or decreased relative to the situation where Hlocal = 0 ...
Magnetism - Cabrillo College
... Since atoms contain moving electrons (charges), we expect them also to exert and feel magnetic forces. However, in most materials, the electrons in different atoms all “spin” in different directions, so the magnetic forces all balance out and the material is non-magnetic. In iron, however, the elect ...
... Since atoms contain moving electrons (charges), we expect them also to exert and feel magnetic forces. However, in most materials, the electrons in different atoms all “spin” in different directions, so the magnetic forces all balance out and the material is non-magnetic. In iron, however, the elect ...
Using the “Clicker”
... that is so compact a small one can fit in your pocket. It consists of two Dshaped regions known as dees. In each dee there is a magnetic field perpendicular to the plane of the page. In the gap separating the dees, there is a uniform electric field pointing from one dee to the other. When a charge i ...
... that is so compact a small one can fit in your pocket. It consists of two Dshaped regions known as dees. In each dee there is a magnetic field perpendicular to the plane of the page. In the gap separating the dees, there is a uniform electric field pointing from one dee to the other. When a charge i ...
magnetic field
... Please pick up your midterm and solution set from front of class if you did not last time. ...
... Please pick up your midterm and solution set from front of class if you did not last time. ...
Lecture 16
... idea of the fictitious current id can help us to quickly find the direction and magnitude of an induced magnetic field: Recall: Inside a long straight wire with current: ...
... idea of the fictitious current id can help us to quickly find the direction and magnitude of an induced magnetic field: Recall: Inside a long straight wire with current: ...
Electromagnetism
Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature. The other three fundamental interactions are the strong interaction, the weak interaction, and gravitation.The word electromagnetism is a compound form of two Greek terms, ἤλεκτρον, ēlektron, ""amber"", and μαγνῆτις λίθος magnētis lithos, which means ""magnesian stone"", a type of iron ore. The science of electromagnetic phenomena is defined in terms of the electromagnetic force, sometimes called the Lorentz force, which includes both electricity and magnetism as elements of one phenomenon.The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life. Ordinary matter takes its form as a result of intermolecular forces between individual molecules in matter. Electrons are bound by electromagnetic wave mechanics into orbitals around atomic nuclei to form atoms, which are the building blocks of molecules. This governs the processes involved in chemistry, which arise from interactions between the electrons of neighboring atoms, which are in turn determined by the interaction between electromagnetic force and the momentum of the electrons.There are numerous mathematical descriptions of the electromagnetic field. In classical electrodynamics, electric fields are described as electric potential and electric current in Ohm's law, magnetic fields are associated with electromagnetic induction and magnetism, and Maxwell's equations describe how electric and magnetic fields are generated and altered by each other and by charges and currents.The theoretical implications of electromagnetism, in particular the establishment of the speed of light based on properties of the ""medium"" of propagation (permeability and permittivity), led to the development of special relativity by Albert Einstein in 1905.Although electromagnetism is considered one of the four fundamental forces, at high energy the weak force and electromagnetism are unified. In the history of the universe, during the quark epoch, the electroweak force split into the electromagnetic and weak forces.