Elektromagnetism

Elektromagnetism

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Albert Einstein

• Applied Computational Electromagnetics Society
  ACES provides a forum for issues relevant to numerical modeling in applied electromagnetics.
• Basic Electronics
  Online book which covers topics from ohms law to digital circuits. Contains interactive troubleshooting simulations.
• CdTe Gamma Detectors Equipped With Ohmic Contacts
  Gamma induced currents in CdTe and CdZnTe semiconductor detectors equipped with ohmic contacts are not sensitive to hole trapping.
• CEDRAT
  Provides a fully integrated line of tools, products and services in electrical engineering.
• Classical Electrodynamics for Undergraduates
  Rough Draft-not complete.
• Differential Forms in Electromagnetic Theory
  The differential forms research group at BYU is investigating the use of the calculus of differential forms in teaching and research. Differential forms have been used to express Maxwell's laws since early in this century, but many of the advantages of forms as a tool for applied electromagnetics have only recently been discovered.
• Electricity and Magnetism
  An excerpt of a set of online course notes focusing on electricity and magnetism.
• Electricity Fun
  Fun projects demonstrating electrical principles. Great for kids!
• Electrodynamics in Relativistic Notation
  Describes Lorentz scalars, covariant and contravariant vectors and tensors, and how to use relativistic notation to describe charge conservation and the inhomogenous wave equation for potentials.
• Electromagnetic Fields and Forces
  The forces on charged particles due to electromagnetic fields are introduced and related to the general case of force on a particle by a gauge field. Also covers the electromagnetic four-potential. Section of book A Radically Modern Approach to Introductory Physics by D. Raymond.
• Electromagnetic Induction
  A virtual experiment on creating electric current with a changing magnetic field.
• Electromagnetic Inertia
  Derivation and proof of the inertial properties of electrostatic and magnetostatic fields.
• Electromagnetic Spectrum
  A NASA site listing the various wavelengths of electromagnetic radiation.
• Electromagnetism
  Authors' web pages for the textbook "Electromagnetism", by G. L. Pollack and D. R. Stump, published by Addison-Wesley.
• Electromigration
  Surface electromigration refers to the directed motion of atoms (adatoms) at solid surfaces, grain boundaries and interfaces which is caused by an electric current in the bulk of the material. It is considered a key factor determining the reliability of integrated circuits.
• Electrostatics equations
  Main equations and formulas of electrostatics.
• Fun with Microwave Radiation
  Ronald Raygun's experiments with microwave oven hardware.
• Hovemere Ltd
  Scientific instrument company specialising in Optical and Electronic Measurement Systems, U.K.
• How a Compass Works
  Explanation of how compasses work and how to make your own, from How Stuff Works.
• How a metal detector works
  Interactive Java tutorial explaining the principles of electromagnetic induction.
• How an Electromagnet Works
  Explanation of principles and experiments, from How Stuff Works.
• How Solar Cells Work
  Principles of operation of silicon photovoltaic cells.
• How Van de Graaff Generators Work
  Description of Van de Graaff generators and static electricity, from How Stuff Works.
• Is it Possible to Generate Electricity Directly from Heat?
  A brief explanation from How Stuff Works.
• Magnet Formulas
  A small web site devoted to the vanishing art of practical magnet design without FEA, including field formulas for simple conductor configurations, air core solenoids and Helmholtz Coils.
• Magnetics and Magnetism
  General and specific information resources.
• Magnetism and Magnetic Physics
  An elementary primer on magnetism and magnetic physics. Contains questions frequently asked about the science of magnetism.
• Maxwell's Equations
  Description of Maxwell's equations.
• Maxwell's Equations and Electromagnetic Waves
  An overview of Maxwell's Equations and how they determine the speed of light.
• Motion in an Electromagnetic Field
  A JAVA applet which allows the user to vary the magnetic and electric fields, and then launch a test particle and study its ( nonrelativistic ) motion.
• Negative Permittivity and Permeability Material
  The true "left handed" material is described. In this medium, light waves are expected to exhibit a reverse Doppler effect.
• Nijmegen-Amsterdam High Field Magnet Laboratory (HFML)
  Research in very High Magnetic Field facility.
• Paradoxes of Modern Electrodynamics
  Provides analysis of some modern electrodynamics concepts including peculiarities and «white spots» in the model of an electromagnetic wave. The site is in English and Russian.
• Properties of Magnetic Nanoscale Objects
  Description of research at University of Cambridge, Nanoscale Science Laboratory.
• Rail Gun
  This page covers relevant techniques in electromagnetic propulsion, but the construction of a rail gun is a perilous undertaking so use the information contained herein at your own risk.
• Science Ebooks Ezine
  This site offers a variety of electronics and physics animations and visual aides for teachers or students.
• Static Electricity Projects
  Site devoted to projects utilizing static electricity (motors, generators) which are simple enough and can be relatively easily built.
• The Electromagnetic Field Tensor
  A page of notes on advanced methods of electromagnetism
• The relativity of energy
  The principle of the relativity of energy applied to unit systems, to electrostatics and magnetism, will give us a unified vision of the electromagnetic fields.
• The Van de Graaff Generator Website
  This site includes information on how Van de Graaff Generators work and instructions for building one. There are pictures of one built using these steps.
• Vacuum Tube Diode
  A demonstration of how a vacuum tube diode works.
• Visualizing Magnetic Fields: Numerical Equation Solvers in Action
  A book (with CD) describing modeling and visualization of magnetic fields. Also described are the numerical algorithms used for solving the equations.
• VRML Gallery of Electromagnetism
  Visualization of the electromagnetic field.
• X-ray Optics and Microscopy at Stony Brook
  Research describing use of coherent soft X-rays for optics experiments, including Fresnel zone plates, to produce the smallest focused spot of electromagnetic waves for studies of biological and materials science specimens.

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